When we use must or mustn´t it goes with a ...
verb
You …… listen to your teacher .
must .
I can’t / mustn’t tell lies.
mustn´t
You must / mustn´t take care of your pet
Yes, I must
You ............. drink green milk
MUSTN´T
If we use MUST in a phrase it expresses obligation or prohibition?
Obligation
In most cities ....people use recycling containers
must
You…….wash your teeth to have a pretty smile
must
You ....... eat fruit and vegetables
MUST
have/in/cities/must/green spaces/we.
We must have green spaces in cities
Pedestrian / You / have / city. / areas / must / in / areas / your
You must have pedestrian areas in your city
I can / must do my homework.
must
friends / in / to / class / mustn't / talk / your / You
You mustn´t talk to your friends in class
must/to/match./They/football/go/the
They must go to the football match.