Mustn’t, must, can’t

1.

Obligation.
You must keep
the room clean
and tidy.
(that’s the rule)
Prohibition.
Refusing
permission.
You mustn’t eat
in class.
(it’s forbidden)
You can’t play
loud music at
night.
(you aren’t
allowed to)

2.

Find examples with
obligation,
prohibition, and
refusing permission
in the leaflet.

3.

Fill in:
,
or
.
mustn’t put You …….…
must
can’t cook
PleaseYou
don’t
…………
make
wear a
You ……………
There isn’t much
so much
seatbelt
noise. when
We you
posters
in the your meals in the
must
time. We ………
mustn’t
………
are
wake
in athe
car. That’s
room. It’s
room. It isn’t
hurry.
children.
the rule.
forbidden.
allowed.

4.

Fill in
, or
.

5.

Mrs Welsh has got a cold and is coughing a lot. The doctor is telling him what he
must or mustn’t do.
must
You ………………
stay in bed.
mustn’t
You ………………
go to work.
must
You ………………
take some medicine.
must
You ………………
eat soup.
mustn’t
You ………………
drink cold drinks.
must
You ………………
drink milk or hot tea.
mustn’t
You ………………
eat ice-cream.
must
You ………………
stop smoking.

6.

Mother and father are telling their son what he must or mustn’t do.
1. You must/mustn’t do you homework.
2. You must/mustn’t be late for school.
3. You must/mustn’t talk in class.
4. You must/mustn’t tidy your room.
5. You must/mustn’t go to bed late.
6. You must/mustn’t get up early.

7.

8.

Mr Brown has problems with his heart. The doctor is telling him what he must
or mustn’t do.
mustn’t
mustn’t
must
mustn’t
mustn’t
must
must
must
must
must
must