The answer is "always want to".
Anti-climax greatly annoys readers. If they're going to put the time into reading something because it has an engaging plot, they're going to expect an equally interesting climax to arise out of that plot. If the readers don't get that, they're going to feel cheated.
Answer:
a. I am allowed to take photographs here.
b. They are not allowed to leave the school.
c. She can sit here.
d. I am permitted to play here.
e. They are banned from speaking English in Nepali class.
Hopefully this is what you were looking for!