Modal Verbs

Do you ... wear a uniform at school?

• have to

• must

I ... work Monday to Friday.

• must

• have to

Sam usually .... take the rubbish out in the morning.

• has to

• must

It's cold out. I ... wear my warm coat.

• must

• have to

How long will you ... stay in the hospital?

• have to

• must

I'm so tired. I ... take a break.

• must

• have to

My mum says I ... clean my room every day.

• must

• have to

You .... water the plants. I've already watered them.

• can't

• don't have to

• mustn't

You ... be rude to your parents.

• mustn't

• must

• ougtn't

You ... to eat more fruit and vegetables if you want to stay healthy.

• should

• had better

• ought