Fill in the gaps with can, must,may. We.....come to school in

We must come to school in time. May I take your pen? She can speak English. Children must not be cheeky. May I go home? He can play the guitar.

Past Indefinite.

We had to come to school in time. Might I take your pen? She could speak English. Children did not have to be cheeky. Might I not go home? He could not play the guitar.

May, must and can are modal verbs. We dont use to before them and we dont use to after them. We dont add suffixes to them. In interrogative sentences modal verbs are at the beginning of the sentences.