1.He hasn't gone abroad before

2. She has been driving for 1 month

3. We have been eating since it started to rain

4. I haven't had my hair since I left her.

5. She hasn't kissed me for 5 months

6. We haven't met for a long time

7.How long have you had it ?

8. I haven't had such a delicious meal before

9. The last time I saw him was 8 days ago

10. It is last Moday since I have taken a bath.

The last time + S+ V(qkđ) = S+have/has not+ V3/ed + for/since + time

S+started/began+ Ving+time ago = S+have/has+been+Ving+ for/since ago

How long + MĐ hiện tại hoàn thành

Since+ mốc thời gian

For+ khoảng thời gian

This is the first time+ S+V(qkđ)= S+have/has+V3/ed+before