*) Thì hiện tại tiếp diễn:

`(+)` S + am/is/are + V-ing + ...

`(-)` S + am/is/are + not + V-ing + ...

Chú ý: is not `=` isn't

           are not `=` aren't

`(?)` (WH-words) + am/is/are + S + V-ing + ...?

`1,` I am playing football with my friends right now.

`2,` Where is she? - She is playing the piano at the room.

`3,` Lan and Phong aren't swimming at the moment.

`4,` She is talking to me about her new neighbor.

`5,` What are they doing in the school yard?

`6,` Is my brother playing badminton with my friends?

`7,` I think they are planning a new project.

`8,` I suspect the cat is stealing food in the kitchen.

*) Thì quá khứ đơn:

`(+)` S + was/ were + ...

`(-)` S + was/ were + not + ...

Chú ý: was not `=` wasn't

           were not `=` weren't

`(?)` (WH-words) + was/ were + S + ...?

`1,` I was a student.

`2,` She was bored of this film.

`3,` They was doctors.

`4,` I was interested in watching TV.

`5,` They were fond of playing football with me.

`6,` Ann and Nam were scared of horror movies.

`7,` When I was a child, I used to cry.

`8,` Where were they yesterday?

*) So sánh hơn:

`->` Với tính từ ngắn: S + to be + adj-er + than + P/ N.

`->` Với tính từ dài: S + to be + more + adj + than + P/ N.

Các trường hợp đặc biệt

`->` good - better - the best

`->` bad - worse - the worst

`->` far - farther/ further - the fathest/ furthest

`1,` Lan is taller than me.

`2,` He is more intelligent than her.

`3,` This house is bigger than that one.

`4,` The red car is more expensive than the black one.

*) So sánh hơn nhất:

`->` Với tính từ ngắn: S + to be + adj-est + ...

`->` Với tính từ dài: S = to be + the most + adj + ...

`1,` She is the most intelligent in my class.

`2,` My house is the oldest in my city.

`3,` The picture is the most beautiful of all.

`4,` He is the most talkative in my class.

*) Thì quá khứ đơn:

`(+)` S + Ved/ V2 + ...

`(-)` S + did not/ didn't + V-inf + ...

`(?)` (WH-words) + did + S + V-inf + ...?

`1,` I went to school yesterday.

`2,` Hoa didn't travel to London last weekend.

`3,` What did they do last night?