Use of have and can: Modal verbs: B1- intermediate:

 

Use of have and can: 

Modal verbs for permission and obligations:

Look at these examples to see how can, can't, must, mustn't, have to and don’t have to are used.

You can put your shoes and coat over there.

You can't leave your bike there.

I must call the electrician and get that light fixed.

You mustn't worry about me. I'll be fine.

You have to have a licence to drive a car.

You don't have to have a licence to cycle on the roads.

Grammar explanation:

We often use verbs with modal meanings to talk about permission and obligation.

Permission:

can:

We often use can to ask for and give permission.

Can I sit here?
You can use my car if you like.
Can I make a suggestion?

could:

We also use could to ask for permission (but not to give it). Could is more formal and polite than can.

Could I ask you something?
Could I interrupt?
Could I borrow your pen for a moment, please?

Prohibition:

We use can't and mustn't to show that something is prohibited – it is not allowed.

can't:

We use can't to talk about something that is against the rules, particularly when we didn't make the rules.

What does this sign say? Oh, we can't park here.

You can't take photos in the museum. 

They're really strict about it.

Sorry, we can't Smoke here.

Obligation:

We use have to and must to express obligation. There is a slight difference between the way we use them.

have to:

Have to shows us that the obligation comes from outside the speaker. 

We have to wear a uniform when we're working in reception.

(Student to teacher) When do we have to hand in our homework?

Al has to work tomorrow so he can't come.

We sometimes call this 'external obligation'.

No obligation:

don't have to

We use don’t have to to show that there is no obligation. You can do something if you want to but it's not compulsory.

You don't have to wear a tie in our office but some people like to dress more formally.

You don't have to go to the bank to do a transfer. You can do it online.

You don't have to come with me, honestly. I'll be fine!

Grammar:

1-Make examples using the modals have and can:

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Online exercises 📚✏️

Discussion 📚✏️

Q and A session 📚✏️

End of the class 📚✏️