asking someone to do something Can you tell me the way to the museum? Can we have two coffees, please? talking/asking about if it's OK to do something You can't smoke in this restaurant. Can I leave early today, please? giving/asking for advice What do you think I should do? You shouldn't work so hard - you're always tired. talking about ability I can speak English but I can't write very well. How many languages can you speak? offering to help Can I carry those bags for you? Can I get you something to drink?