`1` I didn't watch TV last night

`->` Dấu hiệu : last night

`2` Did Emma come to the party?

`->` Dấu hiệu : did

`3` Dad didn't buy a new car last week

`->` Dấu hiệu : last week

`4` Mary left for Italy last month

`->` Dấu hiệu : last month

`5` The boys didn't football last Saturday

`->` Dấu hiệu : last Saturday

`->` Câu trúc câu thì quá khứ đơn

`->` S + V(past)...

`->` S + did not (didn't) + V(bare)...

`->` Did + S + V(bare)...?

@newspacelucy

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. didn't watch

DHNB: last night 

2. Did Emma come

3. didn't buy 

DHNB: last week 

4. left

DHNB: last month

5. didn't play 

DHNB: last Saturday 

`color{orange}{~LeAiFuRuiHuiBao~}`