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Jul 12

Learn British English Grammar Free (video): must; have to; must not; don’t have to; need not

Chris explains the difference between ‘must’, ‘have to’, ‘must not’, ‘don’t have to’ and ‘need not’ (needn’t). For Dani. Please click here for a visual grammar cline.

Must

Obligation: yes.

Do you do it? Yes.

‘You must go to all your classes’.

 

Have to

Obligation: yes.

Do you do it? Yes.

‘I have to go shopping’.

 

Must not

Obligation: yes.

Do you do it? No.

‘You must not smoke at school’.

 

Do not (don’t) have to

Obligation: no.

Do you do it? You choose.

‘You don’t have to come later’.

 

Need not (needn’t)

Obligation: no.

Do you do it? You choose.

‘You needn’t come later if you don’t want to’.

 

Notes

must = have to

don’t have to = needn’t = don’t need to

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