Form HAVE-EN + BE-ING + ∅/s
1Unaccomplished action
The process began in the past and is still ongoing or has just stopped — often with for and since.
- I have been working here for three years. (for + duration)
- She has been studying since this morning. (since + starting point)
- Don't tidy up the table, I 've been writing my essay. (the subject has not yet finished writing the essay)
- You 've been watching the 8 o'clock news. (the presenter signals that the action is coming to an end, but it is still "fresh" in the viewer's mind)
2Specific situation — temporary / unusual / exceptional
- He has been sleeping on the couch lately.
- She has been taking the bus since her car broke down.
3Perceptible traces in the present as a contingent consequence of a past action
Explanation
The speaker explains present perceptible traces by a past action. Since this is an explanation, the adverb because may appear or remain implied.
- My hands are covered in flour: I 've been baking a cake.
- I'm out of breath because I 've been running.
Deduction (the speaker infers an activity from clues)
- Your eyes are red. Have you been crying?
- You look exhausted. You have been running.
- There's flour everywhere. She has been baking.
Accusation (with you as subject)
- You have been smoking again, haven't you?
- You have been going through my things!
Recent event (effects still present)
- I'm out of breath. I have been running.
- He's soaking wet. He has been standing in the rain.
+ Possible subjective comment: He has been drinking again. (disapproval) · She has been complaining all day. (annoyance)