CAN

(REQUEST) [auxiliary verb] [+ infinitive without to] [informal] - used informally to request somethingIf you see Adrian, can you tell him (= please tell him) I'm in London next weekend?"Can't you move your chair in a bit, please?" "I'm sorry, but there isn't any more room."Can you make a little less noise, please? I'm trying to work.(informal) Less commonly, can might be used in orders or threats, usually ones which are given angrily.If you carry on being horrible to your sister, Sophie, you can just go to bed! [+ infinitive without to]