be able to

they can run fast

I could hear footsteps

he can't afford it

be permitted to

you can use the phone if you want to

nobody could legally drink on the premises

used to request someone to do something

can you open the window?

can't you leave me alone?

preserve (food) in a can

sardines and anchovies are worth the extra money if canned in olive oil

dismiss from a job

he was canned because of a tiff over promotion