2. … to describe what is necessary, a rule,
or something we do because other
people tell us to.
For example:
“ We have to buy a ticket to see the castle”
“She has to wear a uniform at work”
3. The negative form, DON’T or DOESN’T
HAVE TO is used to describe something
UNNECESSARY.
For example:
“I don’t have to work tomorrow.There’s a
holiday”
4. … to describe something we personally
think is necessary and important to do.
For example:
“You must be more careful!”
“Sorry, I must go now”
5. …when an action is against the rules or
prohibited.You can often use can’t or not
allowed to instead.
For example:
“You mustn’t use a pencil to do the exam”
(it is not allowed)
6.
7. … to say what we think is right or correct,
or is a good idea in your opinion.This is
not as strong as must/ have to.
… to give advice.
For example:
“You should pay more attention”
“You shouldn’t talk so much”
8. MUST/ MUSTN’T
HAVE TO/ HAS TO
DON’T HAVE TO/ DOESN’T HAVE TO
SHOULD/ SHOULDN’T
They are all followed by an INFINITIVE
VERB.
