Cấu trúc cả bài : 

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 ? 
Cấu trúc thì quá khứ đơn với tobe 
` ( + ) ` : S + was / were + ... 
` ( - ) ` : S + wasn't / weren't + ... 
` ( ? ) ` : Was / Were + S + ... 
- Was not ` = ` Wasn't , Were not ` = ` Weren't 
` + ` I / he / she / it / chủ ngữ số ít + was ( not ) + ... 
` + ` You / we / they / chủ ngữ số nhiều + were ( not ) + ...

` - ` Dấu hiệu : Yesterday ( Hôm qua ) 

` 1 ` . was 

` 2 ` . got 

` 3 ` . did 

` 4 ` . took 

` 5` . combed 

` 6 ` . had 

` 7 ` . ate 

` 8 ` . drank 

` 9 ` . helped 

` 10 ` . brushed 

` 11 ` . put 

` 12 ` . went 

` 13 ` . had 

` 14 ` . returned 

` 15 ` . did 

` 16 ` . ate 

` 17` . took 

` 18 ` . was 

` 19 ` . came 

` 20 ` . went 

` 1 ` . Yesterday was Sunday 

` - ` Thông tin : Yesterday was Sunday 

` 2 ` . At ` 6 ` 

` - ` Thông tin : Nam got up at 6 

` 3 ` . He helped Mom clean the table 

` - ` Thông tin : After breakfast , He helped Mom clean the table 

` 4 ` . He had lunch with his grandparents 

` - ` Thông tin : He had lunch with his grandparents 

`5 `. At ` 6:30 ` 

` - ` Thông tin : He ate dinner at ` 6:30 ` 

` 6 ` . At ten o'clock 

` - ` Thông tin : Nam went to bed at ten o'clock