`1.` stayed / rode

`-` last là dấu hiệu chia thì QKĐ : S + V2/ed + ...

`2.` became/has been

`-` ago là dấu hiệu chia thì QKĐ : S + V2/ed + ...

`-` for + khoảng thời gian là dấu hiệu chia thì HTHT : S + have/has + P2 + ....

`3.` is raining/has rained

`-` now là dấu hiệu chia thì HTTD : S + am/is/are + V-ing + ......

`-` for + khoảng thời gian là dấu hiệu chia thì HTHT : S + have/has + P2 + ....

`4.` have drunk

`-` This is the Superlative (...est/ most ADJ N) S +have/has+P2

`5.` have studied

`-` since + mốc thời gian là dấu hiệu chia thì HTHT : S + have/has + P2 + ....

`6.` flows

`-` Thì HTĐ : S + V (s/es) + .....

`7.` have you seen

`-` How many + N nhiều + have/has + S + P2 + ... ?

`8.` is staying/has

`-` at the moment là dấu hiệu chia thì HTTD : S + am/is/are + V-ing + ......

`-` Thì HTĐ : S + V (s/es) + .....

1/ When I last stayed in Cario, I rode to the Pyramids on a camel. (Thì QKĐ -> last)

2/ He became ill 3 days ago, he has been ill for 3 days. (Thì QKĐ -> ago) (Thì HTHT -> for)

3/ It is raining now. It has rained for four hours. (Thì HTTD -> now) (Thì HTHT -> for)

4/ This is the best wine I have ever drunk. (Cấu trúc câu: This is the best + N + I + has/ have + ever + P2)

5/ We have studied a very hard lesson since yesterday. (Thì HTHT -> since)

6/ The Nile flows into the Mediterranean Sea. (Thì HT -> sự thật hiển nhiên)

7/ How many films are you seeing this month? (Thì HTTD -> this month)

8/ She is staying with her parents at the moment although she has her own flat. (Thì HTTD -> at the moment) (Thì HTĐ -> câu bình thường)