May she bring food and drinks to the park?
Sorry, but I can't finish the homework today.
You mustn't take anything from a store without paying for it.
Can you play the piano?
People shouldn't waste water or energy.
Would you like a cup of tea?
Visitors don't have to pay for tickets. They are FREE.
Emily could take an aspirin for her headache.
You should recycle you garbage.
James must pay the rent by the 10th evry month.
LACK OF NECESSITY
ABILITY
REQUEST
ADVICE NOT TO
SUGGESTION
ADVICE TO DO
LACK OF ABILITY
PERMISSION
PROHIBITION
OBLIGATION