Question

. Он должен идти?

Must he go?
Must he to go?
Must he goes?

2. Можно войти?

Do I come in?
May I come in?
May I to come in?

3. Я тоже должен пойти?

Must I to come too?
Must I come too?
Do I come too?

Answer 1

Ответ:

Must he go?

May I come in?

Must I come too?

Answer 2

1) Он должен идти? — Must he go?

2) Можно войти? — May I come in?

3) Я тоже должен войти? — Must I come too?