поставьте в вопросительную и отрицательную форму предложения
1) he can give you his report on the life of Jack London
2) she could translate English text
3) you mast return my magazines on Wednesday
4) I mast go to see your grandmother on my day off
5) they may take four magazines from that shelf

1) Can he give you his report on the life of Jack London?He can`t give you his report on the life of Jack London2)Should she translate English text?She should not translate English text3) Must you return my magazines on Wednesday?You mustn`t return my magazines on wednesday4)Must I go to see your grandmother on my day off?I must not go to see uour grandmother on my day off5) May they take four magazines from that shelf?They  can not take four magazines from that shelf  ( не уверена что есть отрицание к  may)