Can you walk? Yes, I
can.

Can you dance? No, I
can't.

Can your daughter read?
Yes, she can.

Could you help me?
Unfortunately, I couldn't.

Could you tell me the
time? Yes, I could.

Must the children go to
bed? Yes, they must.

Must I clean my room,
mum? No, you don't
have to.

May I watch this film?
No, you mustn't.

Should I talk to her?
Yes, you should.

Should he go there
alone? No, he shouldn't.

Could Sally dance eight
years ago? No, she
couldn’t.

Should she have told
him the truth? Yes, she
should.