Помогите пожалуйста,составить предложения правила о школьном дворе с употреблением слов:can,cant,must,musnt,have to,do have to.

You can play in the school yard. You can’t park cars in the school yard. You must keep the school yard clean and tidy. You mustn’t smoke in the school yard. You have to follow the school rules and regulations when you are in the school yard. You don’t have to plant trees in the school yard every year.