We must/mustn't play soccer in the garden.
must
We must/mustn't walk in the class.
must
We must/mustn't throw garbage on the floor.
mustn't
We must/mustn't do our homework.
must
You must/mustn't play basketball in the garden.
must
We must/musn't eat unhealthy food.
mustn't
You must/mustn't play football at home.
mustn't
We must/mustn't run in the class.
mustn't
You must/mustn't listen to your teacher.
must
You must/mustn't be quiet in the class.
must