Must Have to

Must Have to

What's the difference between
'must'
and
'have to' ?
Find out in this quiz!


David’s mum is speaking to him and she says:
You must do your homework this evening or I will kill you!
You have to do your homework this evening or I will kill you!
You have got to do your homework this evening or I will kill you!

a) In the positive, Must and Have to are both used for obligation.  

b) Have to and Have got to have a slightly different meaning.  

c) Have got to is more informal than Have to and used more in speaking.  


David’s mum is speaking to him about his friend James who she doesn’t like.
1. You haven’t to see him again!
2. You don’t have to see him again!
3. You mustn’t see him again!

a) Which of these sentences is grammatically INCORRECT?  

b) Sentence 2 and 3 have the same meaning.  

c) In which sentence can David choose if he wants to see James again?  

d) Which sentence is obligatory and means David can never see James again?  

e) After which sentence could you add the phrase “if you don’t want to”?  


Now you have understood the rules, you can practice with the questions below

You ___________ smoke on airplanes.  

If you ride a bicycle, you __________ wear a helmet, but it helps if you do.  

You __________ ask for my permission, you can do what you want.  

I am going to tell you a secret, but you ____________ tell anyone else.  

He’s a millionaire, __________ work, he just does it because he enjoys it.  

You __________ park your car here, it’s forbidden.  

I like Sundays because I __________ work.  

You __________ speak to the driver when the bus is moving, it’s dangerous.  

The teacher told me I __________ speak during the lessons.  

It’s very informal here, so you __________ wear smart clothes.