RULER

can: Requests and Orders

We often use can in a question to ask somebody to do something. This is not a real question - we do not really want to know if the person is able to do something, we want them to do it! The use of can in this way is informal (mainly between friends and family):

• Can you make a cup of coffee, please.
• Can you put the TV on.
• Can you come here a minute.
• Can you be quiet!

can: Permission

We sometimes use can to ask or give permission for something:

1. Can I smoke in this room?
2. You can't smoke here, but you can smoke in the garden.

(Note that we also use could, may, might for permission. The use of can for permission is informal.)