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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, ...

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

I.

1. am

DHNB: at the weekend

2. doesn't study

DHNB: on Friday

3. aren't

4. has

DHNB: today 

5. have

DHNB: usually

6. Does she live

7. are your children

8. works

9. likes

10. lives

11. rains

DHNB: every day 

12. fly

DHNB: every summer

13. fries

DHNB: every morning

14. closes

15. tries / don't think 

16. passes

17. is / watch

DHNB: every night 

18. writes

DHNB: every week

19. Do you speak

20. doesn't live

II.

1. was 

DHNB: yesterday 

2. played

DHNB: ago

3. was

DHNB: yesterday

4. Did / go

DHNB: yesterday

5. returned

DHNB: yesterday

6. taught

DHNB: ago

7. didn't go 

DHNB: yesterday

8. was

DHNB: last vacation

9. didn't come

DHNB: last night

10. did / do 

DHNB: last night

11. met

DHNB: last night

12. didn't go

DHNB: last Sunday 

13. didn't watch / did

DHNB: last night

14. went / was / felt / did / go / grew / swam / watched / talked 

DHNB: last year

used to + V1: đã từng 

III.

2. are meeting

DHNB: at the moment 

3. are visiting

DHNB: at the moment 

1. isn't reading

DHNB: now 

`color{orange}{~LeAiFuRuiHuiBao~}`