MUST / MUSTN´T
You MUST close the door when you leave home.
We MUST study English every day.
I MUST pay attention in class.
I MUST pay attention in class.
She MUST do her homework.
I MUST be good person.
They MUST use our English blog. It`s great!
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You MUSTN´T cheat in tests.
They MUSTN´T fight.
She MUSTN´T take photos in the museum.
We MUSTN´T shout or run in class.
I MUSTN´T throw any rubbish on
the floor.
You MUSTN´T tell a lie to teacher.
![Resultado de imagen de photo must and mustn´t](https://image.slidesharecdn.com/must-musnt2-130414062219-phpapp02/95/must-musnt-2-1-638.jpg?cb=1365920574)