You (a)   help me with my homework. (musisz)

He (a)   wash his car. (nie musi)

He (a)   borrow your bike. (nie powinien)

They (a)   work yesterday. (nie musieli)

He (a)   read when he was 5. (nie umiał)

Do you need help? I (a)   stay and help you.

He (a)   play the guitar really well.

We (a)   stay out late. (nie możemy)

We (a)   wear uniforms. (nie musimy)

They're (a)   choose what they want to eat. (są w stanie)

I (a)   help you tomorrow. (będę w stanie)

He (a)   do all the exercises. (był w stanie)

She (a)   go to bed early. - musi

Students (a)   dress smartly. (powinni)