Công thức thì HTĐ (V: tobe)

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

(-) S + am/is/are + not .. 

(?) Am/Is/Are + S + ... ? 

I + am

S số ít, he, she, it + is

S số nhiều, you ,we, they + are

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 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 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, ...

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

17. Are you waiting 

18. doesn't travel / drives 

19. does / do 

20. are playing 

DHNB: now (HTTD)

21. aren't watching / are asleeping

DHNB: at the moment (HTTD)

22. comes / finishes 

DHNB: always (HTD) 

23. spent 

24. is sleeping 

DHNB: Be quiet! (HTTD)

25. to cook / eat 

want + to V: muốn

Let's + V1 

26. is raining / go out 

can't + V1: không thể 

27. wears / is wearing 

DHNB: always (HTD), today (HTTD)

28. do you buy / are having 

DHNB: tonight (HTTD)

29. are the children / are they doing / Are they watching 

30. look / Do you feel / Do you like 

`color{orange}{~MiaMB~}`