To talk about prohibition you use : can/must or can’t/ mustn’t
Can’t / mustn’t
15
My brother is a chef. He can/ must cook really well.
Can.
15
Firefighter or bus driver: you must pick people up at each stop. You must know your location
Bus driver
15
Farmer or hairdresser: you must wake up early. You must work with plants and animals.
Farmer
15
Teacher or hairdresser?: you must speak to a lot of people. You mustn’t wear a uniform. You must be knowledgeable. You must work Monday-Friday
Teacher
15
Firefighter or police officer?: you mustn’t be afraid of heights. You must work in a team. Sometimes you can sleep at work. You must wear a uniform. You must save people. You have to be brave.
Firefighter
15
Can/ must I go to the toilet, please?
Can
15
Must/can I go to my friends house.
Can
15
It is raining, I mustn’t/ must bring an umbrella to school today.
Must
15
I’m hungry. I must/ mustn’t eat breakfast before school.
Must
15
I can/ mustn’t use my phone in school.
Mustn’t
15
I must/ can was my hands after using the restroom.
Must
15
I must/ can wash my hands after using the restroom.