Cấu trúc thì quá khứ đơn với động từ 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 +  ...

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

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

`- `Were + you / we / they + ... ?

Cấu trúc thì quá khứ đơn với động từ thường

` ( + ) ` : S + v-ed / V2

` ( - ) ` : S + didn't + V nguyên mẫu

` ( ? ) ` : Did + S + V nguyên mẫu ?

` -`Các dấu hiệu nhận biết thường gặp : yesterday , last night , ` 5 ` years ago , in the past , ...

` 1 ` : was

` 2 ` : was

` 3 `: were

` 4 ` : were

` 5 ` : was not

` 6 ` : was not

` 7 ` : was not

` 8 ` were not

` 9 ` : was not

` 10 ` : Was - was not

` 11 ` : Was

` 12 ` : were

` 13 ` : Were