The structure is (subject + verb + complement).

In the verb to be for the "I" it is "am", and for the "You/We/They" it is "are", and for the "He/She/It" it is "is", and for the subjects "He/She/It" a "-s" must be added to the verb at the end. When the verb ends in "-o, -ch, -sh, -ss, -s, -x, or -z" you must add "-es", or when it is a consonant and "-y", you must remove it the "-y" and add "-ies", or when it is a vowel and "-y", only the "-s" should be added.

Examples:

1.-Repeated: I go to the gym every morning.

2.-Always or generally true: Chile is a very long country.

3.-Happening in a future time: The train leaves at 6pm tomorrow.

When the verb ends in "ie" you must replace it and add "-ing" to the end of the verb.

The structure is (subject + verb to be + verb (-ing) + complement) and for questions is (Verb to be + subject + verb (-ing) + complement + ?).

Examples:

1.- She is reading a book right now.

2.- They are playing soccer in the park.

3.- I am studying for my exams this afternoon.

The structure is (subject + will/will not + infinitive), and for question is (Question word + will/will not + subject + infinitive + ?)

Examples:

1.- What restaurant will we meet later?

2.- She will travel to Spain next summer.

3.- They will finish the proyect by next week

The stucture is (subject + verb(-ed) + object)

Examples:

1.- I visited my grandparents last weekend.

2.- She watched a movie yesterday.

3.- They played tennis on friday.

The structure is (subject + was/were + verb(-ing) + object), the "was" is added when the subject is "I, he, she, it" and the "were" is added when the subject is "you, we, they."

Examples:

1.- I was studying all night for the exam.

2.- They were watching a movie when the power went out.

3.- We were walking to the store when it started to rain.

Within these adverbs is: First- after- soon- next- after a while- meanwhile- then- finally- just then- later- at last, etc.

Examples:

1.- I finished my work, and then i went to the gym

2.- She was cooking dinner, meanwhile, her brother was setting the table.

3.- After the meeting, we went out for lunch.

For short adjectives we often add "-er" to the adjective.

For longer adjectives we add "more" or "less" before the adjective.

Superlatives are used to compare three or more things.

For short adjectives we add "-est" to the adjective.

For long adjectives we use "most" or "least" before the adjective.

Examples:

1.- Comparative: This summer is hotter than last year.

2.- Comparative: She is more beautiful than Anne Hathaway.

3.- Superlative: This is the smallest dog i have ever seen.

4.- Superlative: She is the most popular student in the school.