You must/mustn't do your homework.
must
You must/mustn't be on time for class.
must
You must/mustn't fight with your friend.
mustn't
You must/mustn't take care of your pets.
must
You must/mustn't go fishing in the lake.
mustn't
You must/mustn’t respect your parents.
must
You must/mustn't pick flowers from someones garden.
mustn't
You must/mustn't walk on the grass.
mustn't
You must/mustn't put your rubbish in the bin.
must
You must/mustn't be quiet in the library.
must
You must/mustn't run across the road
mustn't
You must/mustn't sleep in class.
mustn’t
You must/mustn't keep your bedroom tidy.
must
I must/mustn't get up early on school days.
must
You must/mustn't talk in class.
mustn’t
You must/mustn't clean the board after the lesson.
must
