Used to + V (nguyên) => diễn tả thói quen trong quá khứ ( đã chấm dức ở hiện tại)

Eg: My father used to smoke.

Eg: I used to go to school by bus.

(+) S+ used to+V

Eg: My aunt used to be a doctor.

Eg: James used to be my friend

(-) S + didn't + use to +V

Eg: I didn't use to ride a bike.

Eg: I didn't use to read and write English

(?) Did+ S + use to+ V ?

Eg: Did you use to write letter to him?

Eg: Did she use to be a pop star?

Lấy 2 ví dụ cho mỗi cấu trúc:

Used to + V (nguyên) => diễn tả thói quen trong quá khứ ( đã chấm dức ở hiện tại)

Eg: Jack used to live in Brighton, but now he lived in Liverpool.

Eg: People used to believe in magic.

(+)S+ used to+V

Eg: I used to listen to the radio.

Eg: They used to go swimming together.

(-) S + didn't + use to +V

Eg: I didn't used to listen to the radio.

Eg: They didn't used to go swimming together.

(?) Did+ S + use to+ V ?

Eg: Did you used to listen to the radio?

Eg: Did they used to go swimming together?

CHÚC BẠN HỌC TỐT OWO