This is for pronunciation purpose. Silent letters, and accent on mustn't
Please feel free to correct anything that would seem strange to a native speaker.
Please make a slight pause between the sentences.
You mustn’t chat during lessons.
You mustn’t use your cell phone in class.
She must be quiet.
You must be quiet.
I must go.
You must listen to the teacher
You mustn’t talk so loud
They mustn’t run in the corridors.
You mustn’t kick your brother’s knees, it’s painful!
You must be polite at all times.
You must respect the rules of the game.
You mustn’t fight.
Wrestling is forbidden.
You must work hard.
You mustn’t bring a knife in your bag.
Must
Mustn’t
Must go
Must eat
He mustn’t eat or drink in the museum of the castle, it’s forbidden.
We must knock at the door first.
Paul, you must fasten your seatbelt!
You must go to school on Wednesdays, too.
They mustn't climb on that statue, this is strictly forbidden, Sir!
Generally speaking, Americans don't use "mustn't" very often in normal speech. We would say "should not" (shouldn't) or "cannot" (can't), instead.