... put your cellphone on vibrate. (obligation)
You have to/ you've got to
... turn left. (prohibition)
You can't/ you're not allowed to
... eat or drink in this place. (prohibition)
You can't/ you're not allowed to
... show an ID with photo to enter. (obligation)
You have to/ you've have got to
...throw the trash in the garbage can. (Obligation)
You have to/ you've got to
... record / tape the lessons. (prohibition)
You can't/ you're not allowed to
... use the stairs in case of fire. (Obligation)
You have to/ you've got to
... park your bike here. (permission)
You can/ you're allowed to
... listen to music in class. (Prohibition)
You can't/ aren't allowed to
... come to a complete stop. (obligation)
You have to/ you've have got to