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Define CAN, COULD and BE ABLE TO
Give three examples of each.

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We often use can in a question to ask somebody to do something. This is not a real question - we do not really want to know if the person is able to do something, we want them to do it! The use of can in this way is informal (mainly between friends and family).

Can you make a cup of coffee, please.

Can you put the TV on.

Can you come here a minute.

We use could to talk about what was possible in the past, what we were able or free to do.
We often use could in a question to ask somebody to do something. The use of could in this way is fairly polite (formal).

Could you understand what he was saying?

Could you tell me where the bank is, please?

Could you send me a catalogue, please?

We use be able to to express ability. "Able" is an adjective meaning: having the power, skill or means to do something.

I have been able to swim since I was five. (present perfect)

You will be able to speak perfect English very soon. (future simple)

I would like to be able to fly an airplane. (infinitive).

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- Can: Is used to indicate the ability or capacity to do something. It is often used to talk about someone's skill or permission to do something. Examples:
* I can dance.
* Can you speak Italian?
* You can go to the party if you finish your homework.

- Could: It is used to refer to past abilities, past events, or past possibilities. Additionally, "could" can be used to make requests in a more polite or indirect manner. Examples:
* She could speak French fluently when she was a child.
* It looked like it could rain at any moment.
* Could you help me with my homework?

- Be able to: is a construction that indicates the capability or capacity to perform an action. It can be used in various tenses to talk about both present and future abilities.
Examples:
* We will be able to meet you at the airport tomorrow.
* She is able to solve complex math problems.
* I hope I'll be able to finish this project by the deadline.

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Can: having the capacity or power that allows you to do something.
Examples:
You can make whatever you want.
I can watch the sky full of stars over here.
He can jump very high.

Could: refers to something that has a weak possibility, or something that might happen, but is not necessarily a general truth.
Examples:
Could you lend me a pen, please?
She could go to the concert when she was 19.
Could you help me with this, please?

Be able to: to have the necessary physical strength, mental power, skill, time, money, or opportunity to do something.
Examples:
I wish I'll be able to travel this year.
I've been able to draw since I was five.
We're able to work today.

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Can: is used to express ability or capacity in the present.
Example:
+I can speak Spanish fluently.
+Can you swin?
+I can't play the piano.

Could: is used to express skill or ability in the past or to make a request politely.
Example:
+When i was young i could run very fast.
+Could you help me with this problem.
+I couldn't find the keys.

Be able to: is used to express to ability or capacity in general not limited to a specific time. It is also used in verb tenses where "can" and "could" are not possible.
Example:
+Thanks to his dedication, he was able to become a great doctor.
+I will never be able to forget that day.
+I'm excited to be able to travel the world.

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Can: Is a modal verb used to indicate present or general ability or capability to do something.
Examples
- She can swim.
- He can speak three languages fluently.
- Can you help me with this problem?

Could: Is the past tense of "can" and is used to express past ability, a polite request, or a conditional possibility.
Examples
- I couldn't finish my exam on time.
- Could you give me some examples of that?
- When I was a child, I could play the piano.

Able to: Is a phrase used to express ability or capability, similar to "can," but it can be used in a wider range of tenses and forms.
Examples
- He will be able to attend the meeting tomorrow.
- After years of practice, you be able to run long distances.
- She will be able to become CEO.

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Can, could  and be able to

Can :We have already seen that it is used especially to talk about a skill or capacity in general.
Example:
Here its negative form is “can't”:

-I can't speak French at all.
-Ali can't play the piano.
Permission
Likewise, “can” can be used to ask for permission or grant it:

-Can I have another piece of cake please?
-She can stay out until 12 tonight.
Offers and requests
Another of its uses is to offer something:
-Can I help you with your bag?
Or when we make a request:
-Can you open the window please?

Could
The modal verb could is a modal verb because it must always be accompanied by another verb with its own meaning and in the infinitive mood (without to).  Could is the past or conditional form of can and would be translated as “could” or “knew.”  It is usually used in the English second conditional.  The negative form of this modal verb is couldn't and has the same meaning and uses as could.
Example:
I could play the piano when I was five.
My sister could ride her bike before she was seven.
Skill in the past:
I could swim when I was ten.
Could you play the piano when you were at school?
Ask permission politely
Could you open the window, please?
Could you lend me the book please?
Could in the affirmativeSubject + could + infinitive without to
I could sing.
She could ride a horse.
Negative:
I could not / couldn’t sing.
She couldn’t ride a horse.
Be able to
Be able to, literally translates to 'being able to.
I'm not able to move my leg.Be able to also allows you to express can at different times in the past and future:
I was able to get to the meeting on time, despite the fact that the subway was late.
You'll be able to use your arm by the end of the month.

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Can: is a modal verb used to indicate the ability or possibility of doing something in the present or future.
-She can run very fast.
-He can speak fluently.
-I can play the guitar.
Could: is also a modal verb used to indicate the ability or possibility of doing something in the past or as a polite way to make a request or offer.
-Could you lend me some money?
-Could I use your bathroom?
-Coul I speak to John?
Be able to:  is a phrase that can be used to express ability or possibility in the present, past, or future. It's often used in situations where "can" or "could" may not be suitable.
-I will be able to see my parents tomorrow.
-He is able to meet at 12:00pm.
-I was able to study English.

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CAN
It is a very popular verb in English that is often used to talk about ability or permission. Generally, can is used as a modal verb.

-Carlos can come pick us up at eight.

-Can you call me when you get home?

-Can I go to the bathroom?

COULD
Could is a modal verb used to talk about situations that were possible in the past but did not occur.

-Could you speak English when you were little?

-I could run very fast when I was little.

-Could you help me with my homework, please?

BE ABLE TO
The form Be able to is used in English to talk about skills and also to talk about having the resources to do something.

-He is not able to sing that song yet

-You should be able to learn many things by yourself.

-You will be able to win their opponents in tournaments.

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Can is mainly used to talk about an ability in the present. Examples:
-She Can win the swimming competition.
-Sofia Can speak many languagues.
-She Can participate.

Could is used to talk about a skill in the past and in the indirect style.
-I Colud play the guitar when I was younger.
-I Could smell something burning.
-I Could help you with French.

Be Able To is defined as having the ability to do something and is used to talk about and action in the future and in the past.
-Rosa was able to swim.
-I was able to bake a cake yesterdey.
-I am able to speak 3 languages.

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Can: You can use it to talk about abilities, skills, or talents, and you can use it to talk about what is possible to do. Also, can is used to make offers and requests.
Examples:
1. Can I help you with something?
2. I am sure he can win the competition.
3. My dad can give us a ride.

The negative of can is can't or cannot.
Examples:
1. I can't help you with the homework.
2. I can't go tonight.
3. I can't eat chocolate, I'm allergic.

Could: Could is used to talk about past abilities and possibilities. You use it to talk about what abilities, skills, or talents you had or developed in the past, and what was possible for you to do in the past. Just like can, you can also use could to make offers and requests.
Examples:
1. Could you give us a ride?
2. I could speak English when I was 7 years old.
3. My sister could dance really well.

The negative of could is could not or couldn't.
Examples:
1. At my old job, we couldn't wear headphones and listen to music while we worked.
2. Yesterday, I couldn't open the door.
3. I couldn't find my keys.

Able to: is special because it is used to talk about ability and possibility, but it can be used to refer to the past, present, or future. It is also used to talk about succeeding in or failing to do something. In regard to ability and possibility, can is only used in the present, could is only used in the past, but be able to is much more versatile.
Examples:
1. I am able to swim tomorrow.
2. We were able to see a doctor at midnight.
3. After she finishes her studies, she will be able to travel around the world.

The negative of be able to is be not able to (for present and past tenses) or not be able to (for future tenses).
Examples:
1. I won't be able to finish the project today.
2. The lawyer is not able to attend the meeting.
3. I haven't been able to contact my husband all morning.

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Can:
Present Ability: "Can" is used to express a general or specific ability in the present. It indicates that someone has the skill or capability to do something at the moment.
Example:
She can speak three languages.
Permission: It is also used to ask for or give permission in a casual or informal context.
Example:
(asking for permission): Can I borrow your pen?

(granting permission): Yes, you can borrow it.

Could:

Past Ability: "Could" is used to express a past ability. It indicates that someone had the skill or capability to do something in the past.

Example: When I was younger, I could run very fast.

Polite Request: It can be used to make polite requests.

Example: Could you please pass the salt?

Conditional or Hypothetical: "Could" can also be used to indicate a hypothetical or conditional situation.

Example: If I had more time, I could finish this project.

Be Able To:

General Ability: "Be able to" is a more formal way of expressing ability in the present. It can be used interchangeably with "can."

Example: She is able to solve complex math problems.

Future Ability: It can also be used to express future ability or the likelihood of being able to do something in the future.

Example: After some practice, he will be able to play the piano.

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The verb "can" in its present form can be used to ask permission or to grant permission to someone. Likewise, in their negative form they can be used to deny permission.
for example in requests
-can you come tomorrow to help me?
Skills
-She can speak 3 languages
Permissions
-Boss, can I go now?

Could is used to talk about a general ability in the past and, on the contrary, the form was/were able to is used to refer to a specific situation in the past. In the negative form we will use couldn't in all situations.
Part of its uses could be in requests
-Could you give me a sandwich?
Possibility
He could be the new guest
Past skill
-3 weeks ago I couldn't speak English

Be able to means to be able, to have the capacity for something, and is more used to talk about an action in the future and past.
examples
-I would like to be able to go to your wedding
-I'll be able to cook tonight
-I would like to be able to attend but I won't be able to.

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CAN:

Definition: "CAN" is a modal verb used to express an ability or possibility in the present.

Examples:

She can speak three languages fluently.

I can swim very well.

They can come to the party tonight.

COULD:

Definition: "COULD" is a past tense form of "CAN" and is used to indicate past ability or polite requests.

Examples:

When I was younger, I could run faster.

Could you please pass me the salt?

He said he could help us with the project.

BE ABLE TO:

Definition: "BE ABLE TO" is used to express the ability or capacity to do something, often in various tenses.

Examples:

After weeks of practice, she was able to play the piano beautifully.

We will be able to attend the conference next week.

I haven't been able to reach him on the phone all day.

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°Can: The modal 'can' is a commonly used modal verb in English. It's used to express: ability, opportunity, a request, to grant premission, to show possibility or impossibility. Example:
1. You can speak Italian.
2. Can you speak Italian?
3. I can drive a motorcycle.

* Could: Is a modal verb used to express possibility or past ability as  well as to make suggestions and requests. We use could to show that something is possible, but not certain.Examples:
1. I could paint.
2. She could have been a doctor.
3. We could go to the cimena.

* Be able to: Is not a modal auxiliary verb. We use 'be able to' to express ability. IT is the verb 'tobe' plus the adjetive' able'. Example:
1.  I am able to dance.
2. She is able to play the guitar.
3. They are able to speak five languajes.

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CAN
The verb can is a modal verb that we use to talk about something and someone has the ability to do something, for example:
- she can sing
- he can speak german and portugueses
But we also use it to ask for or give permission, for example:
- can i have another piece of cake, please?

COULD
we use could to express that something is possible or the likelihood of something happening.
Example
-it could be nice
-you could travel
Or to ask permission in a more polite and formal way than we would use can.
Example
-could you help me?

ABLE TO
Is used to talk about abilities and also to talk about having the resources to do something.
Example
-we are able to swim
-i will be abre to cook delicious dishes after i finish the cooking course
-you'll be able to use your arm by the end of the month

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Can and could are modal verbs that you can use to express ability, possibility or to ask permission. They work as auxiliary verbs, so we should always place them before the main verb of the sentence so that it conditions it.
The verb can is a modal verb that we use to talk about something and someone having the ability to do something. For example:

He can play the guitar

Maria can sing

They can run very fast

But we also use it to ask or give permission, for example:

Can I ask you a favor?

You can eat grapes if you want.

We use could to express that something is possible or the probability of something happening. Examples:

You could travel this weekend

Natalia could be nice

I could do dinner today

Using might implies that the action may not happen or has very little chance.  Examples:

I might call you tomorrow.

Juan might not come tomorrow

I might win the lottery tomorrow

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Can: is a modal verb used to express ability, capacity or permission to do something. It is used to talk about physical abilities or skills. It is also used to make requests or requests in a polite manner.
Example:
•She can play the piano
•Can you pass me the salt, please •Can you come to the party?
Could: is the past form of can and is also a modal verb, it is used to express ability or capacity in the past. Sometimes, it is used to talk about possibilities or hypothetical situations in the present or future. Example:
• He could speak three languages fluently.
•When I was younger, I could run faster.
• I could help you.
Be able to: is similar to the verb can, but is used in more formal situations or to emphasize ability in a specific context.
Example:
•I am able to solve complex math problems.
•She will be able to speak Spanish fluently after taking lessons.
•I will be able to attend the meeting tomorrow.

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Can:

The modal verb 'can' is used to express ability and to express permission (possibility). It is usually translated as 'can', although in some cases it is translated as 'know'.

-We can get together soon.

-I can speak English fluently.

-She can play the piano very well.

Could:

"Could" is a modal verb used to express possibility or past ability, as well as to make suggestions and requests. "Could" is also commonly used in conditional sentences as the conditional form of "can".

-Could I get you a drink?

-Could you come here for a minute?

-You could call her tomorrow.

Able to:

It is simply the verb be plus an adjective (able) followed by the infinitive. We look at "be able to" here because we sometimes use it instead of "can" and "could". We use be able to: to talk about ability.

-Are you able to drive?

-They will be able to work on Saturday

-If you go fast I won’t be able to follow you

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Can: is used to express abilities, possibilities and permissions.
Examples:

I can swim.

They can speak multiple languages.

You can see my cellphone.

Could: is the past tense of can, is to indicate that something is possibly true, or that it may possibly happen.

She could be at home.

Could I ask you a question?

I could run faster

Be able to: is often used to express ability, capability, possibility and permission. It is useful in situations where a more formal expression is desired.

Are yoy able to come to the party.

He may  be able to join us for dinner.

We were able to complete the project on time.

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CAN
Shows that something is possible, allowed or somebody/something has the ability to do something.
Examples:
I can dance Tango.
She can't sing.
Can you speak English?

COULD
Used as the past tense of can or to talk about ability or things that were possible.
Examples:
I could run seven kilometres when I was younger.
We could see the ocean from our window.
I could see that Danny was happy.

BE ABLE TO:
If you are able to do something, you have skills or qualities which make it possible for you to do it.
Examples:
I am able to speak Japanese.
I was able to drive
You'll be able to read in peace.

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CAN : it is use to express the speaker's ability or permission to do something.
1. I can swim
2. I can meet you after school.
3. She can play the piano.

COULD: it is used to express the speaker's ability or permission to do something in the past.
1. You could have called first.
2.  Could I go to the park?
3. Could we go home now?

BE TO ABLE: used to express someone's ability to do something in the present or future.
1. I am able to swim.
2. I am able to speak 5 languages.
3. I was able to climb a mountain.

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Can: is a modal verb used to indicate the ability or possibility of doing something in present or future.
Examples:

She can speak several languages.

You can easily get lost in this town.

He can be really annoying at times.

The negative of can is  can't or cannot.

Examples:

You cannot be serious-

She cannot speak French very well.

We can't go to the cinema tonight.

Could: Is used to talk about the abilities and possibilities. You use it to talk about what abilities , skills or talents you had developed in the past and what was possible.
Examples:

My brother could dance very well.

Could I have my bill, please?

They could go to the movies if you are interested.

The negative of could is could not or couldn't.
Examples:

He could not resist telling her the truth.

I couldn't find my keys this morning.

She couldn't understand the directions on the packet.

Be able To: If you are able to do something, you have skills or qualities which make it possible for you to do it.
Examples:

I am able to speak French.

I have been able to swim since I was five.

Are they able to help us?

The negative form of be able to is be not able to (for present and past tenses)(future tenses).
Examples:

I have been able to play football.

He should be able to work in a team.

I haven't been able to contact my sister all the night.

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CAN:

Definition: "CAN" is a modal verb used to express an ability or possibility in the present.

Examples:

She can speak three languages fluently.

I can swim very well.

They can come to the party tonight.

COULD:

Definition: "COULD" is a past tense form of "CAN" and is used to indicate past ability or polite requests.

Examples:

When I was younger, I could run faster.

Could you please pass me the salt?

He said he could help us with the project.

BE ABLE TO:

Definition: "BE ABLE TO" is used to express the ability or capacity to do something, often in various tenses.

Examples:

After weeks of practice, she was able to play the piano beautifully.

We will be able to attend the conference next week.

I haven't been able to reach him on the phone all day.

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Examples of how use Can, Could and Be able to.

1. Using "can" (present)

1. He can score goals from outside the box.

2. They can defend very well under pressure.

3. The team can win the championship this year.

4. We can watch the game live at the stadium.

5. Our goalkeeper can stop almost any penalty.

2. Using "could" (past)

1. He could dribble past defenders easily when he was younger.

2. They could have won the match if they had scored earlier.

3. The coach could change the formation at halftime.

4. In his prime, he could run the entire field without getting tired.

5. We could see a surprise result if the underdog plays well.

3. Using "be able to" (present, past and future)

1. He will be able to play next season after recovering from his injury.

2. They weren’t able to score in the last match.

3. She has been able to improve her passing skills significantly.

4. We might be able to attend the final if we get tickets.

5. The striker was able to score a hat-trick in the first half.

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1. When to Use “Can”

“Can” is used to express:

• Ability: to show what someone is capable of doing.

• Permission: to ask or give permission in informal contexts.

• Possibility: to talk about what is possible.

Examples:

1. I can swim very fast. (Ability)

2. Can you help me with this problem? (Request)

3. You can use my phone if you need it. (Permission)

4. She can come to the party tomorrow. (Possibility)

5. I can see the mountains from my window. (Ability/Sense perception)

2. When to Use “Could”

“Could” is the past form of “can” and is used to:

• Express past ability: what someone was able to do in the past.

• Make polite requests: softer and more formal than “can.”

• Show possibility or suggestion: often hypothetical situations.

Examples:

1. I could play the piano when I was younger. (Past Ability)

2. Could you pass me the salt, please? (Polite Request)

3. If we leave early, we could avoid traffic. (Possibility)

4. She could come with us if she finishes her work. (Possibility/Suggestion)

5. He could run very fast when he was a kid. (Past Ability)

3. When to Use “Be Able To”

“Be able to” is used to:

• Express ability (similar to “can”), but in more formal contexts or different tenses.

• Emphasize someone’s capacity to do something in specific situations.

Examples:

1. After years of training, she is now able to perform complex surgeries. (Present Ability)

2. I was able to finish the project on time. (Past Ability)

3. They will be able to join us next week. (Future Ability)

4. She hasn’t been able to reach him yet. (Negative Ability in the present perfect)

5. I’d love to be able to speak French fluently. (Ability as a goal)

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When do we use “Can”? Give 5 examples.

Can to ask permission

• I can play football.

You can sing.

My sister can read.

We can speak English.

They can write the words.

When do we use “could”? Give 5 examples.

The modal verb could is a modal verb because it must always be accompanied by another verb with its own meaning and in the infinitive mood (without to). Could is the past or conditional form of can and would be translated as “could” or “knew.”

Examples:

•I could swim when I was ten.

•Could you play the piano when you were at school?

•I could play the piano when I was five.

•My sister could ride her bike before she was seven.

•Could you open the window, please?

When do we use “be able to”? Give 5 examples?

The expression to be able to is used to express capacity or possibility.

•However, to be able tothat requires having a good telescope.

•A therapist may be able to help with that part.

•You should be able tofeel the stretches and exercises.

•You must be able to do anything for your agent.

•You will be able to win their opponents in tournaments.

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Can

"Can" is one of the most commonly known modals in English grammar.We use can to express possibility or to question possibilities.

Examples:

1. I can play the guitar.

2. He can bake vanilla cakes.

3. She can swim vey well.

4. I can paint beautifull landscapes.

5. I can speak spanish.

Could

The verb could is, primarily, the past tense form of the word can. Is a modal verb used to express possibility or past ability as well as to make suggestions and requests.

Examples:

1. Could you swim when you was a girl?

2. I could climb trees when i was a child.

3. He could speak spanish eight years ago.

4. She could play basketball when she was younger.

5. You could run fast when you were a little boy.

Be able to

Is for to talk about abilities, knowledge, or talent. In present, past, and future.

Examples:

1. I will be able to run tomorrow.

2. She will be able to do her partial the next month.

3. He will be able to travel next year.

4. They will be able to visit Baru volcano.

5. We will be able to decorate our Christmas tree tomorrow.

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Can: is a modal verb that is used to express, ability, permission, possibility or request. This modal verb is used in the present.

Example

(Ability)

She can speak three languages.

He can drive race cars.

(Permission)

I can go to the party.

(Possibility)

It can get very cold here in winter.

(Request)

Can You help me with My homework?

Could: is the form in past of "can" it's also a modal verb with various uses. This express Ability in past, permission in past, possibility, polite request and conditional.

Example

(Ability in past)

When I was younger.

(Permission in past)

High school, we could leave early on friday.

(Possibility)

It cold rain later.

(Polite Request)

Could You help me with homework?

(Conditional)

"If, I has more times, I could travel more"

To able to: means having the ability or capability to do something, it can be used to in different sentence

Example

(Present ability)

She is able to solve complex problems.

(Past ability)

He was able to finish the exam on time.

(Future ability)

They Will able to join us next week.

(Conditional)

If, I have time, I might be able to help You.

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Sulmaría Morhaim 4-825-1039, Shanix Orribarra 8-1030-95

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Sulmaría Morhaim 4-825-1039, Shanix Orribarra 8-1030-95

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1. Can

Used to express abilities, possibilities, and permissions in the present.

• Example 1: “I can play the guitar.”

• Example 2: “Can you help me with my homework?”

• Example 3: “She can speak Spanish fluently.”

• Example 4: “We can go to the park if the weather is nice.”

• Example 5: “Dogs can hear sounds at a higher frequency than humans.”

2. Could

Used to talk about abilities or possibilities in the past and to make polite requests or suggestions.

• Example 1: “When I was young, I could run very fast.”

• Example 2: “Could you please pass the salt?”

• Example 3: “He could play the piano when he was a child.”

• Example 4: “We could see the mountains from our hotel room.”

• Example 5: “If I had more time, I could learn another language.”

3. Able to

Used to express capacity or ability, especially in contexts where “can” is not grammatically correct (like in perfect tenses).

• Example 1: “I was able to complete the project on time.”

• Example 2: “After months of practice, she is now able to dance professionally.”

• Example 3: “They will be able to travel to Europe next year.”

• Example 4: “I am not able to attend the meeting tomorrow.”

• Example 5: “He is able to solve complex problems quickly.”

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When do we use "Can":

"Can" is one of the most commonly used modal verbs in English. It can be used to express ability or opportunity, to request or offer permission, and to show possibility or impossibility.

"Can" is also used to suggest something might happen in the future. Can, like could and would, is used to ask a polite question, but can is only used to ask permission to do or say something.

Examples:

1. I can swim very well.

2. Can I borrow your pen?

3. She can speak three languages.

4. You can leave early if you finish your work.

5. They can come to the party if they want.

When do we use "Could"

"Could" is used for past ability, polite requests, or hypothetical situations.

"Could" is used to indicate that something is possible, but not certain.

"Could" can be used to refer to something that you wish to have or do but that is not possible.

Examples:

1. When I was younger, I could run for miles.

2. Could you please help me with this?

3. If I had more time, I could learn to play the guitar.

4. He said he could meet us later.

5. We could go to the beach if the weather is nice.

When to Use "Be Able To"

"Be able to" is used to express ability in specific situations, often when "can" is not appropriate due to tense.

"Be able to" is used to talk about abilities, similar to "can" or "could" in the past.

"Be able to" can be used to discuss the success or failure of an action.

Examples:

1. I will be able to finish the project by Friday.

2. She was able to solve the problem quickly.

3. He is able to lift heavy weights at the gym.

4. They have been able to travel more since they started saving money.

5. After months of training, I finally became able to run a marathon.

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Usage of "Can":

"Can" is used to express:

1. Ability or capacity: To indicate that someone can do something in the present.

2. Permission: To request or give authorization.

3. Possibility: To indicate that something is possible.

Examples:

1. I can swim very well.

2. Can I borrow your pen?

3. He can speak three languages.

4. They can finish the project on Friday.

5.You can park your car here.

Use of "Could":

"Could" is used to express:

1. Ability or ability in the past: Indicates that someone could do something in a previous time.

2. Requests or offers: To make requests in a polite manner.

3. Possibility: To indicate that something is possible.

Examples:

1. When I was younger, I could run fast.

2. Could you help me with this?

3. He could be at the party if he finishes his work.

4. I could see the mountains from my window when I lived in Colorado.

5. We could go to the beach tomorrow if the weather is good.

Use of "Be able to":

"Be able to" is used for:

1. Completed actions: To talk about ability or ability in a specific tense, especially in tenses where "can" or "could" cannot be used.

2. More formal contexts: It is considered more formal than "can" or "could".

Examples:

1. Tomorrow I will be able to accompany you to dinner.

2. She has been able to solve the problem on her own.

3. They were able to finish the task on time.

4. After a lot of practice, you can finally play the piano.

5. If you train hard, you will be able to compete next year.

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Shanix Orribarra 8-1030-95 Sulmaría Morhaim 4-825-1039

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Shanix Orribarra 8-1030-95 Sulmaría Morhaim 4-825-1039

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1. Can

Used to express abilities, possibilities, and permissions in the present.

• Example 1: “I can play the guitar.”

• Example 2: “Can you help me with my homework?

• Example 3: “She can speak Spanish fluently.”

• Example 4: “We can go to the park if the weather is nice..

• Example 5: “Dogs can hear sounds at a higher frequency than humans.”

2. Could

Used to talk about abilities or possibilities in the past and to make polite requests or suggestions.

• Example 1: “When I was young, I could run very fast.”

• Example 2: “Could you please pass the salt?”

• Example 3: “He could play the piano when he was a child.”

• Example 4: “We could see the mountains from our hotel room.”

• Example 5: “If I had more time, I could learn another language.”

3. Able to

Used to express capacity or ability, especially in contexts where “can” is not grammatically correct (like in perfect tenses).

• Example 1: “I was able to complete the project on time.”

• Example 2: “After months of practice, she is now able to dance professionally.”

• Example3: “They will be able to travel to Europe next year.”

• Example 4: “I am not able to attend the meeting tomorrow.”

• Example 5: “He is able to solve complex problems quickly.”

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1) "Can" is one of the most commonly used modal verbs in English. It can be used to express ability or opportunity, to request or offer permission, and to show possibility or impossibility.

Examples:

1- I can speak Spanish

2- I can ride a hourse.

3- She can play the piano.

4- They can go to the party.

5- We can swim very well.

2) • Could is the past of can, and it can do everything that can can do.

• Could is used to talk about past abilities and possibilities.

Examples:

1- She could dance really well.

2- I could read when I was three years old.

3- I could open the door, so I went into the house through the window.

4- I could swim, but I couldn't ride a bike when I was nine years old.

5- She could work for six months after her accident.

3) "Be able to" is a verb that can be used to discuss ability, possibility, or succces or failure in the presen, past or future.

Examples:

1- I'm able to swim.

2- Brenda is able to run quickly.

3- The older child should be able to prepare a simple meal.

4- I am able to speak two languages.

5- You are able to program a computer.

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Can

Used to express abilities, permission, requests, possibilities, or offers. This modal verb can be used with any subject but must always be followed by a main verb.

Example:

1- This can take longer than expected. (Positive)

2- She can't stay up all night. (Negative)

3- Can Andrew come with me to the party? (Interrogative)

4- My brother can notice even the slightest mistake. (Positive)

5- Marco can't sleep well these days.(Negative)

Could

It's also used to express possibility and to ask questions in a polite or formal tone.

Example:

1- I tried not to eat the cake, but I could't help it. (Negative)

2- Amy could say "hello" in ten different languages when she was four years old. (Positive)

3- Could I have some more water, please? (Interrogative)

4- My parents could buy that big house because they had saving. (Positive)

5- The police couldn't reveal the boy's whereabouts. (Negative)

Be able to

Means to have the ability or capability to do something and is often used to discuss actions in the future or past.

Example:

1- Will you be able to attend the meeting tomorrow? (Interrogative)

2- However, being able to do that requires having a good telescope. (Negative)

3- A poem must be able to hold its own ground. (Positive)

4- Should you be able to feel the stretchesand exercises?. (Interrogative)

5- He was not able to solve the problem quickly. (Negative)

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Can: We use can to express possibility or to question possibilities. Is also used to suggest something might happen in the future. The negative of can is can't or cannot.

Examples:

This fish can swim!

She can speak two languages.

He can run very fast.

Prasad can eat a variety of food daily.

Could: Is used to talk about past abilities and possibilities. Is a modal verb because it must always be accompanied by another verb with its own meaning and in the infinitive mood. The negative of could is could not or couldn't.

Examples:

I could swim when I was four.

Could you play chess last year? Yes, I could.

My uncle could speak five languages.

By the time he was seven, he could read and write.

I could jump very high when I was younger.

Be able to: Is special because it is used to talk about ability and possibility, but it can be used to refer to the past, present, or future. It is also used to talk about succeeding in or failing to do something. In regard to ability and possibility, can is only used in the present, could is only used in the past, but be able to is much more versatile.

Examples:

After she finishes this program, she will be able to get a job as an accountant.

By 12 o'clock, we will have been able to fix the problem.

She should be able to attend the conference.

I want to be able to play the flute.

You will be able to speak perfect English very soon.