# data[].attributes.body
An explanation and a short quiz

# data[].attributes.body
Text explanation but might help you relate it to the workplace

# data[].attributes.attachment_link.readable_text
'Must', 'have to', and 'need to' in the positive or question form are used to speak about responsibilities, obligations and important actions.
I'm having some trouble understanding this. I must ask Peter a few questions.
She has to work with clients from all over the world.
They need to study more if they want to get good grades.
Sometimes, 'must' and 'have to' can be used to speak about responsibilities.

However, 'must' is generally used for strong personal obligations and 'have to' is used for responsibilities at work and in everyday life.
I must do this right now!
I have to file reports every week.
'Don't have to', 'don't need to' and 'mustn't' have very different meanings. 'Don't have to' is used to express that something is not required. 'Don't need to' also expresses that a particular action is not necessary. 'Mustn't' is used to express that something is prohibited.
She doesn't have to get up early on Saturdays.
Children mustn't be left alone in a car.
You don't need to go shopping as I've already gone.
Listed below are explanations, examples, and uses of must / have to / need to / and mustn't / not have to / don't need to

Have to Do - Responsibilities

Use 'have to' in the past, present, and future to express responsibility or necessity. NOTE: 'have to' is conjugated as a regular verb and therefore requires an auxiliary verb in the question form or negative.

Must Do - Obligations

Use 'must' to express something that you or a person feels is necessary. This form is used only in the present and future.

Don't Have to Do - Not Required, but Possible

The negative form of 'have to' expresses the idea that something is not required. It is , however, possible if so desired.

Mustn't Do - Prohibition

The negative form of 'must' expresses the idea that something is prohibited - this form is very different in meaning than the negative of 'have to'!

IMPORTANT: The past form of 'have to' and 'must' is 'had to'. 'Must' does not exist in the past.

Need to Do - Important for Someone

Use 'need to' to express that something is important for you to do. This form is usually used for something that is important one time, rather than referring to a responsibility or duty.

Don't Need to Do - Not Necessary, but Possible

Use the negative form of 'need to' to express that something isn't necessary, but possible. At times, English speakers use 'don't need to' to express that they don't expect someone to do something.

Must / Have to / Need to- Mustn't / Don't Have to / Don't Need to - Quiz

Use either 'must','have to', 'mustn't or 'not have to' for the following questions. Once you've completed the quiz, scroll down to check you answers.

1. Jack _____(go) home early last night.

2. Ted ________ (buy) some food at the grocery store because we're out.

3. _____ (she/commute) to work every day?

1. Children _____(play) with cleaning liquids.

2. We _____(get) going it's already midnight!

3. When _____(you/arrive) for work last week?

4. They ______ (mow) the lawn. It's getting too long.

5. You _____(do) the cleaning up this morning, I will!

6. They _____(visit) the doctor yesterday, as they were not feeling well.

7. I _______ (get up) every morning at six o'clock, so I can make it to work on time.

Answers

1. had to go / needed to go

2. needs to buy / has to buy

3. Does she have to

4. mustn't play

5. must get

6. did you have to arrive

7. need to mow

8. don't need to do

9. had to visit (there is no past for 'must')

10. have to get up

# data[].attributes.attachment_link.title
Explanation of How to Use Must, Have to, Need to in English

# data[].attributes.attachment_link.description
'Must', 'have to', and 'need to' in the positive or question form are used to speak about responsibilities, obligations and important actions. I'm having some trouble understanding this. I must ask Peter a few questions.She has to work with clients from all over the world.They need to study more if they want to get good grades.

# data[].attributes.headline
Grammar explanation from My Grammar Lab 

# data[].attributes.subject
Grammar explanation from My Grammar Lab 

# data[].attributes.body
must, have to

# data[].attributes.body
don't have to v mustn't