` QKĐ ` Phủ định : 

` ( - ) ` ; S + didn't + V nguyên mẫu

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

` - ` : I / he / she / it / số ít / tên riêng + wasn't + ...

` - ` : You / we / they / số nhiều + weren't + ...

` 1 ` : Tom didn't look after his little brother

` 2 ` : We didn't eat a lot of salad in the summer

` 3 ` : I wasn't hungry

` 4 ` : Zoe didn't go to school by bus

` 5 ` : They didn't take lots of photographs

` 6 ` : The children weren't happy

* Vì ở đây đề kiêu chia thì quá khứ đơn với dạng negative forms:

→ Đối với trợ động từ QKĐ S + didn't + V_inf + O + time 

→ Đối với động từ tobe QKĐ S+ wasn't\ weren't +V_inf+O+time

→ Đối với các danh từ số nhiều như: I , we , you, they...... ( dùng were) 

→ Đối với các danh từ số ít như : He, she, it thì ta sẽ dùng was ( tobe) 

1 Tom didn't look after his little brother 

2 We didn't eat a lot of salad in the summer 

3 I wasn't hungry 

4 Zoe didn't go to school by bus 

5 They didn't take lots of photographs 

6 The children weren't happy 

Học tốt!!!