careva care stie engleza ! vreau sa ma ajute si pe mine daca se poate completati cu :can,can't,must,mustn't,have to sau don't have to .

1;we use ..... to give permission.
2;we use ..... to refus permission.
3;w use ....to express obligation
4;we use ....to expressprohibition.
5;we use
....to express necessity.
6:we use .... to express absence of necessity