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 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, ...

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

1. did 

DHNB: yesterday (QKD)

2. Does Tuan go 

3. visited

DHNB: ago (QKD)

4. don't help

5. weren't

DHNB: last Sunday (QKD)

6. did / design 

7. doesn't crash

8. takes off

9. Did / phone

DHNB: last weekend (QKD)

10. doesn't drink

`color{orange}{~LeAiFuRuiHuiBao~}`