• Present perfect vs Past simple 7Read the theory. Are there similar structures inyour language?We use the present perfect for actions which startedin the past and continue to the present or for personalexperiencesI've lived here since 2002. He's flown a plane.We use the past simple for actions which happened inthe past. The time is stated or it is implied. He went to the lakelast Saturday. (When? Last Saturday) Then they walked homeWhen? Implied time - after they left the lake)​

1. I have known her for six years.
2. I knew him when I was at school.
3. He lived in Paris from 2010 to 2015.
4. He has lived in New York since 2001.
5. Where's Pete? I haven't seen him for ages.
6. I didn't see Pete last night.
7. We were at University from 2010 to 2015.
8. We have been in this lecture since September.
9. I haven't watched this video yet.
10. I didn't watch a video at the weekend.
11. He has lived in this street all his life.
12. His father came back to London last Sunday.
13. I wrote a letter to Nick two days ago.
14. He sent his letter yesterday.
15. They have just bought some postcards. 
16. Ann woke up late and missed her breakfast on Monday.
17. The artist drew a picture of sunset yesterday. She has drawn many pictures of sunsets in her lifetime. 
18. We first met in 2001. So we have known each other for 8 years.