1. I have taken my English course for 3 weeks. ( Thì hiện tại hoàn thành : S + have/has + V(PII) + O )

2. The last time I saw John was in 2009. ( CT : The last time + S + V-ed/... + was + mốc thời gian )

3. Claire hasn't gone on holiday for five years. ( Thì hiện tại hoàn thành : S + have/has + V(PII) + O )

4. This is the first time Sarah has had a smartphone. ( CT : This is the first time + S + have/has + V(PII)/V-ed +.. )

5. This is the first time Charles has had a backache. ( CT : This is the first time + S + have/has + V(PII)/V-ed +..)

6. The last time we went on a concert was a year ago. ( CT the last time )

It is a year since we last went on a concert. ( CT: It is + khoảng thời gian + since + S + last + V - ed + ... )

We last went on a concert a year ago. ( CT : Last )

7. I haven't enjoyed myself since your birthday party. ( CT thì hiện tại hoàn thành )

8. After Peter had lived in Paris, he moved to London. ( Cấu trúc After : S + V(quá khứ hoàn thành), S + V( quá khứ đơn) )

Before Peter had moved to London, he lived in Paris for ten years. ( Gần giống với CT after : Chỉ khác là after >< before = sau khi >< trước khi )

No sooner Peter had lived in Paris than he moved to London. ( No sooner + had + S + PII + than + S + Ved/PI )