Cấu trúc thì quá khứ đơn với tobe :

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

`- ` Chủ ngữ là I / he / she / it + was + ...

` - `Chủ ngữ là You / we / they + were + ...

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

`- ` Chủ ngữ là I / he / she / it + was + not +  ...

` - `Chủ ngữ là You / we / they + were + not + ...

` ( ? ) ` : Was / Were + S + ... ? 

` - ` Was + He / she / it + ... ?

` -` Were + you / we / they + ... ? 

` - ` Was not ` =` Wasn't , Were not ` = ` Weren't

Cấu trúc thì quá khứ đơn động từ thường

` ( + ) `  : S + V-ed / V2

` ( - ) `  : S + didn't + V nguyên mẫu

` ( ? ) `  : Did + S + V nguyên mẫu ?

` 1 `  : didn't see

` 2 `  : brought

` 3 `  : cried

` 4 `  ; could - was

` 5 `  : prepared

` 6 `  : ate

` 7 `  : Did - sit

` 8 `  : were

` 9 `  : forgot

` 10 `  : played

1.didn't see (vì phủ định thì QK ta thêm didn't, động từ giữ nguyên)

2.brought (bring --> brought)

3.cried (cry --> cried)

4.could-was (thì QK can chuyển thành could và to be là was)

5.prepared (prepare --> prepared)

6.ate (eat --> ate)

7.Did you sit (đề bài cho thiếu did mà ko để chỗ trống là có lí do nha, người ra đề đang muốn thử bạn đó, hãy để ý)

8.were (to be thì QK là were dùng cho số nhiều, was dùng cho số ít)

9.forgot (forget --> forgot

10.played (play -->playd

CHÚC BN HỌC TỐT