You needn't look for that informatio

prohibition

You should stop smoking. It will kill you

He was able to do all the Maths exercise at school.

She won't be able to win the contest because she didn't train enough.

They were able to win the gold medal in th Youth Olympic games

Could she come with me to the party?

You don't have to pay for this course. It's free.

You mustn't wear uniform in this school.

He mustn't be his girlfriend. He doesn't look in love.

We could do it for free if you want.