How long have you been feeling ill? He's been chatting online all evening. - With action verbs, to say that an action started in the past and is still happening now.This use is common with time expressions like HOW LONG? , I haven't been sleeping well. It's been raining all day. - For repeated actions, especially with a time expression, ALL DAY, RECENTLY., I've been shopping all morning. I'm exhausted. - For continuous actions which have just finished (but which have present results).,

Present perfect continuous

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