Are this sentences correct?Why/Why not ? If they arent correct , change them .

1.Ouch! Ive been cutting my finger
2.Weve been studying English for eight years
3.Have you been crying ?
4.Shes been reading this book three times
5.My brother has painted his bedroom but he hasnt finished
6.Weve been waiting for the bus for half an hour and it still hasnt home
7.Oh on! Ive been breaking the windows
8.This week ive been staying with my grandparents bus Im going home tommorow

1. Ouch! Ive cut my finger.
4. Shes  read this book three times.
5. My brother has been painting his bedroom but he hasnt finished .
6. Weve been waiting for the bus for half an hour and it still hasnt come.
7. Oh on! Ive broken the windows.
8. This week ive been staying with  my  grandparents but Im going home tommorow.

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