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 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,.....

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7. goes / is going

DHNB: usually (HTD) - today (HTTD)

8. am doing

DHNB: Please be quiet! (HTTD)

9. is / is preparing 

10. are you doing / am writing 

DHNB: at the moment (HTTD)

11. Is it snowing

DHNB: at the moment (HTTD)

12. are playing

DHNB: Listen! (HTTD)

13. are waiting

DHNB: now (HTTD)

14. are working

15. aren’t jogging

DHNB: right now (HTTD)

16. is ringing 

DHNB: now (HTTD)

17. is knocking

DHNB: Listen! (HTTD)

18. is shining

19. wears / is wearing

DHNB: usually (HTD) - today (HTTD)

20. is having/ is lying 

DHNB: now (HTTD) 

21. is smoking

DHNB: Look! (HTTD)

22. is touring

DHNB: at the moment (HTTD)

23. am wearing

DHNB: today (HTTD)

24. belongs

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