` HTĐ `  

` ( + ) `  : S + Vs/es

` ( - ) `  : S + don't /doesn't + V nguyên mẫu

` ( ? ) `  : Do / does + S + V nguyên mẫu

` DHNB ` :

` + `  : usually

` + `  : seldom

` + `  : always

` + `  : ...

` 18 `  : doesn't work

` 19 `  : do you live

` 20 `  : doesn't watch

` 21 `  : does he arrive

` 22 `  : go

` 23 `  : buys

` 24 `  : take

` 25 `  : do you go

18. doesn't work

19. do you live

20. doesn't watch

21. does he arrive

22. go

23. buys

24. take

25. do you go

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Cấu trúc thì hiện tại đơn:

+ S + Vs/es

-  S + do/does + not + V(nguyên mẫu)

?  Do/does + S + V(nguyên mẫu)

Dấu hiệu nhận biết:

every night, in the evenings, every month, usually, often.....

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@nam

xin hay nhất