Modal verbs: Must - Have to - Should - Ought to

Modal verbs: Must - Have to - Should - Ought to

Grade 11

Should + V = Ought to + V

Ex: You should get up earlier. = You ought to get up earlier.

Shouldn't = Ought not to

Ex: You shouldn't stay up late. = You ought not to stay up late.

Multiple Choice

I think you __________ talk to your parents about it. I'm sure they will help you.

• should

• shouldn't

• not ought to

• ought

Must - Have to

Express obligation or the need to do sth

Ex: You must show respect to the old.

You have to clean the floor before going out.

Must

Obligation imposed by the speaker.

Ex: I must finish my homework before going to school.

Have to

Obligation by other people

Ex: You have to wear helmets when riding a motorbike.

You have to wear uniform at school.

Mustn't = Not allowed to do sth

Ex: You mustn't play with fire.

Not have to + V = No need to V

Ex: You don't have to cook today. We're eating out.

Fill in the Blanks

You

finish your homework before you go out with your friends.

Fill in the Blanks

At our school, we

wear uniforms. We can wear anything we like.

Fill in the Blanks

You are not allowed to use phones during the test.

=> You mustn't

Fill in the Blanks

It is not necessary to write an essay.

=> You

(have to)

Multiple Choice

It is a good idea to start revising for the exam a few weeks earlier. 

• You could
• You don't need to
• You ought to
• You can

Multiple Choice

If I were you I would go to the doctor. 

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

Multiple Choice

You needn't call her - she already knows the news. 

• don't have to
• shouldn't
• can't
• mustn't

Multiple Choice

It is forbidden to smoke in public places. 

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

Multiple Choice

You ______ look at me when I am talking to you.

• must

• could

• should

• can't

Multiple Choice

You.... cheat when taking the test.

• Must

• Can

• May

• Must not

Multiple Choice

You ________ study hard if you want to pass the exam.

• Must

• Can

• Should

Multiple Choice

A: Where can I find James?

B: I think you ____ call him first. He's really busy right now.

• can

• ought to

• shouldn't

Multiple Choice

Mum ______ do the shopping. Dad has already done it.

• doesn't have to

• should

• couldn't

Multiple Choice

Remember, you're in a library. You _____ speak loudly.

• Mustn't

• Might

• Can