the dog wasn't eat last night

->The dog didn't get to eat last night

dad was iogged in the park 3 hours ago

->Dad logged into the park 3 hours ago

mum didn't happy last night

->Mom was not happy last night

Công thứ thì QKĐ: 

- Công thức Tobe: S + was/ were +…

- Công thức thường: S + V2/ed +…

1. the dog wasn't eat last night `->` didn't

2. dad was logged in the park 3 hours ago `->` logged 

3. mum didn't happy last night `->` wasn't

``

1+2. Chủ động, QKĐ: S + V2/ed + O 

3. happy là tính từ `->` đi cùng tobe của QKĐ là was/were

mum (số ít) + bị động `->` wasn't 

.

• DHNB QKĐ: time+ago, last+time,...