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

` - ` Ta chia thì quá khứ đơn với tobe

` ( + ) ` : S + was / were + N / adj

` - ` I / he / she / it + was + N /adj

` - ` You / we / they + were + N / adj

` ( - ) ` : S + wasn't / weren't + N / adj

` - ` I / he / she / it + was + not + N /adj

` - ` You / we / they + were + not + N / adj

` ( ? ) ` : ( Wh - questions ) was / were + S + N / adj ? 

Các dấu hiệu nhận biết : last night , last summer , yesterday , in the past ,...

` 1 `  : didn't take - went

` 2 `  : worked

v 3 `  : didn't kick - played

4 didn't have - ate

5 went

6 didn't get - got

7 didn't send - wrote

` II ` 

` 2 `  : Yes he did / No he didn't

` 3 `  : Yes they do / No they didn't

4 : Yes i did / No i didn't