Хаха, не знаю чи по 10 кожного чи вцілому 10, тому якщо надто багато то виберіть що вам личить :)

Must:
We must listen to our teacher
We must sit calm and straight
We must write in our noteboocks
We must be friendly with each other
We must read our textboocks
We must arriwe to school at time
We must wear our school uniform
We must keep classroom clean
We must have change footwear
We must study hard

Mustn't:
We mustn't throw things through the classroom
We mustn't make fights
We mustn't insult each other
We mustn't run on the stairs
We mustn't draw on our tables
We mustn't say bad words
We mustn't play in games while it's lesson
We mustn't open windows without teacher
We mustn't be late at school a lot
We mustn't lie to each other and to teacher

Щасти!