Cấu trúc: After + past perfect, simple past
- After we had worked very hard for the exam, we passed it.
- After my sister had considered what to say, she decided to talk to her headmaster.
- After her brother had checked the prices, he bought a new washing machine.
- After the students had read some materials, they wrote their assignments.

`\text{1. We worked very hard for the exam. Then we passed it.}`

`\text{→ After we had worked very hard for the exam, we passed it.}`

`\text{2. First my sister considered what to say. Then she decided to talk to her headmaster}`

`\text{→ After my sister had considered what to say, she decided to talk about her headmaster.}`

`\text{3. Her brother bought a new washing machine. First he checked the prices.}`

`\text{→ After her brother had checked the prices, he bought a new washing machine.}`

`\text{4. The students read some materials. Then they wrote their assignments.}`

`\text{→ After the students had read some materials, they wrote their assignments.}`

Cấu trúc: `\text{After + S + past perfect + S + simple past}`