Bonjour !
1) They have cleaned.
2) You have finished.
3) She has played.
4) She hasn't known.
5) You have bought.
6) I have run.
7) He has found.
8) We haven't forgottoen.
9) We have sung.
10) It has rained.
Explications :
Present perfect : Auxiliaire + Participe passé du verbe (He has found)
J'espère t'avoir aidé. Bon courage !
