Giúp milk với aaaaaa

`***` Quá khứ đơn

`-` Với tobe

`(+)` S + was/were

`(-)` S + was/were + not

`(?)` (Wh) + Was/Were + S?

`-` Với động từ thường

`(+)` S + V2/ed

`(-)` S + didn't + V

`(?)` (Wh) + Did + S + V?

`->` DHNB: yesterday, this morning, in the past, last + mốc thời gian, khoảng thời gian + ago, in + năm trong quá khứ,...  

`***` Quá khứ hoàn thành

`(+)` S + had + V3/ed

`(-)` S + hadn't + V3/ed

`(?)` (Wh) + Had + S + V3/ed?

`***` Kết hợp QKĐ và QKHT

`-` When QKĐ, QKHT

`-` After QKHT, QKĐ

`-` Before QKĐ, QKHT

`-` By the time QKĐ, QKHT

`-` As soon as QKHT, QKĐ 

`->` Một hành động xảy ra trước hoặc sau hành động khác trong quá khứ.

$#trannhi222$

`2.` has decided `→` had decided

`3.` have `→` had

`4.` went `→` had gone

`5.` ever spent `→` had ever spent

`6.` knew `→` had known

`7.` left `→` had left

`8.` threatened `→` had threatened 

______________________________________

`@` Thì quá khứ đơn

`-` Tobe

`(+)` S `+` was/were

`(-)` S `+` was/were `+` not

`(?)` Was/Were `+` S `?`

`-` V thường

`(+)` S `+` V2/ed

`(-)` S `+` did `+` not `+` V1

`(?)` Did `+` S `+` V1 `?`

`-` Quá khứ hoàn thành

`(+)` S `+` had `+` V3/ed

`(-)` S `+` had `+` not `+` V3/ed

`(?)` Had `+` S `+` V3/ed `?`