Công thức thì HTHT 

(+) S + has/have + V3/ed 

(-) S + has/have + not + V3/ed 

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

DHNB: before, since + mốc thời gian, for + khoảng thời gian, yet, already, just,....

Công thức thì HTĐ (V: thường) 

S số ít, he, she, it 

(+) S + Vs/es

(-) S+ doesn't + V1 

(?) Does +S +V1?

S số nhiều, I, you, we, they

(+) S + V1 

(-) S+ don't + V1 

(?) Do + S+ V1? 

DHNB: always, usually, sometimes, often, never, seldom,....

Công thức thì TLĐ 

(+) S + will + V1 

(-) S + won't + V1 

(?) Will + S+ V1? 

DHNB: in the future, in + năm ở TL, in + time, next week, next year, ....

Công thức thì HTTD  

(+) S + am/is/are + Ving 

(-) S + am/is/are + not + Ving 

(?) Am/Is/Are +S +Ving? 

DHNB: now, right now, (!), at present, at the moment,.....

Công thức thì QKTD  

(+) S + was/were + Ving 

(-) S + was/were+ not + Ving 

(?) Was/Were +S +Ving? 

Công thức thì QKĐ (V: to be) 

(+) S + was/were + ... 

(-) S + was/were + not ... 

(?) Was/Were + S ... ? 

S số ít, I, he, she, it + was

S số nhiều, you, we ,they + were

Công thức thì QKĐ (V: thường) 

(+) S + V2/ed 

(-) S + didn't + V1 

(?) Did + S+ V1?

DHNB: ago, last (year, month ...), yesterday, in + năm QK, ...

-------------------------------------------------

2. hear

Unless = If ... not 

If 1: If + HTD, S + will/can/shall .. + V1

3. Will you send 

4. knew 

S +wish(es) + S+ V2/ed: ước ở hiện tại 

5. makes

6. would be 

S + wish(es) + S + would + V1: ước ở tương lai 

7. were 

If 2: If + S + were, S + would / could +V1 

8. listening / is driving 

enjoy + Ving: thích 

HTĐ + while + HTTD

9. have done

HTHT + since + QKĐ

10. driving 

avoid + Ving: tránh

11. didn't like 

12. would you do 

13. came / were listening 

When + QKĐ, QKTD

14. washed

have + sth + V3/ed 

15. were you doing 

DHNB: at this time yesterday (QKTD)

16. would be 

`color{orange}{~MiaMB~}`