Present perfect simple:
1.I have tried so hard to win the competition.
2. She has gone to the supermarket.
3. The match has already started.
4. He has already left, I'm sorry!
5. I haven't seen something like this before!
6. I have spent a week at my aunt's.
7. She hasn't come yet.
8. They haven't finished yet.
9. She has already finished the book.
10. I have won the race.
