6 sentences, using can, can’t, have to and don’t have to.(please use all at least once)
6 Examples:
You can’t take pets into your dorm.
You don’t have to stay in your dorm every night.
You can join Jim on Facebook, if you want.
You have to ask before leaving the room.
You don’t have to use the canteen for food.
You have to wear a helmet if you are riding a motorcycle.