1. drinks

every morning → HTĐ

2. died

last year → QKĐ

3. have ridden

This is the first time + HTHT

4. haven't known

so far → HTHT

5. taught

5 years ago → QKĐ

6. doesn't rain

in the dry season → HTĐ

7. are having 

now → HTTD

8. Did, find

yesterday → QKĐ

9. has taught

for 20 years now → HTHT

10. have slept 

since → HTHT

11. have ever seen

ever → HTHT

12. Have, received

yet → HTHT

13. met, have been

two years ago → QKĐ

ever since → HTHT

14. returns

often → HTĐ

15. danced

last night → QKĐ

16. discovered 

in 1492 → QKĐ

17. have seen

for nearly two weeks → HTHT

18. floats

Điều hiển nhiên → HTĐ

19. hurried

QKĐ + after + QKHT

*Cấu trúc thì hiện tại tiếp diễn:

(+) S + is/ am/ are + V_ing

(- ) S + is/ am/ are + not + V_ing

(? ) Is/ Am/ Are + S + V_ing?

*Cấu trúc thì quá khứ đơn:

(+) S + V_ed/ V2

(- ) S + didn't+ V_inf

(? ) Did + S + V_inf?

*Cấu trúc thì hiện tại hoàn thành:

(+) S + has/ have + V_ed/ V3

(- ) S + has/ have + not + V_ed/ V3

(? ) Has/ Have + S + V_ed/ V3?

*Cấu trúc thì hiện tại đơn:

(+) S + V_inf/ V-e,es

(- ) S + don't/ doesn't + V_inf

(? ) Do/ Does + S + V_inf?