Modal Verbs

It is forbidden to smoke in public places. 

• You can
• You must
• You mustn't
• You have to 
• You can't

You are obliged to finish this work before the end of the week. 

• have to
• needn't
• can
• might 
• should

We are allowed to drink water in class. 

• We may not
• We needn't
• We can
• We must 
• We should

It is possible that it will rain tomorrow. 

• It may 
• It must 
• It should 
• It can't
• It needn't

I know how to play the piano. 

• I can 
• I may
• I must
• I need to
• I should

If I were you I would go to the doctor. 

• You should
• You can
• You have to 
• You may
• You must

Which one is the least formal:

• CAN

• MAY

• COULD

• WOULD

• MIGHT

This verb is used to talk about

abilities in the past

• CAN

• COULD

• MAY

• MIGHT

• WOULD

When you're driving, you __________ fasten your seatbelt (пристегнуть ремень).

• must

• mustn't

• don't have to

• can

• would

We __________ hurry home, we have got some time.

• must

• don't have to

• mustn't

• should

• can