Question

Найдите и исправьте ошибки

His son should to help you.
They cannot do this exercise yesterday.
You ought have told us about his arrival.
Must I take your dictionary for a while?
My children are able swim very well.

Answer 1

His son should help you.
They couldn't do this exercise yesterday.
You ought to tell us about his arrival.
May I take your dictionary for a while?
My children can swim very well.

Answer 2

1) His son should help you
2) Thay coudn`t do this exercise yesterday.
3) You ought to told us about his arrival.
4) May I take your dictionary for a while?
5) My children can swim very well.
P.S. не уверен, но кажется так.