Bạn tham khảo:
1. They don't let us cycle in the park. (allow)
-> We are not allowed to cycle in the park. (be allowed to V_infinitive: được phép làm gì)
2. He left in the morning and I saw it.
-> I saw him leave in the morning. (see sb + V_infinitive: thấy ai làm gì (chứng kiến cả quá trình))
3. I started working in this hotel six months ago. (worked)
-> I have worked in this hotel for six months. (thì hiện tại hoàn thành: S + have/ has + P2 + for + khoảng thời gian)
4. Jimmy got into his car and drove away. I saw this.
-> I saw Jimmy get into his car and drive away. (see sb + V_infinitive: thấy ai làm gì (chứng kiến cả quá trình))
5. He did his homework then he went to bed.
-> After he had done his homework, he went to bed. (dùng thì quá khứ hoàn thành diễn tả hành động xảy ra trước hành động khác trong quá khứ)