can I watch TV
yes you can
may I take the pet home
no you can't , we still haven't finished
may I play with your equipment ?
no you can't , equipments aren't made for playing with them
can I borrow your dress
yes you can , go ahead I would like to see you in it
can I buy some ice cream
no you can't , it's cold outside
may I leave the class
no you can't
can I use your bike
sure you can
