Present Perfect Continuous

We use the present perfect continuous to talk about actions
or situations that started in the past and are still in progress
He has been learning English for five years
(He is still learning English)
When we talk about actions or situations that have recently stopped but they still have present results.
You are wet . Yes, It has been raining a lot !
When we talk about repeated actions
I have been sending him a lot of messages all day
Have/has + the past participle of the verb to be BEEN and the –ing form of the main verb.
My neighbour has been playing the saxophone for three hours
Adverbs
always, only, never, ever, still, just....
You have only been waiting here for one hour.
Have you only been waiting here for one hour?
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