Вставьте требующийся модальный глагол

1.I ...come and see you tomorrow if I have time.

2.Take your raincoat with you: it ...rain today.

3.You ...not talk at the lessons.

4.What time is it? — It ...be about six o'clock, but I am not sure.

5.I ...not swim, because until this year the doctor did not allow me to be more than two minutes in the water.