.:Present Perfect Progressive - Use:.

1) Actions beginning in the past and still continuing (focus is on the action) - mostly with since (point of time) or for (period of time)

I have been waiting for you for three hours. (It was a long time.)

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2) Recently completed actions (focus is on the action)

She has been watching too many videos. (It was too much time.)

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Signal words

all day, the whole day, since, for

Questions with how long

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Form

have/has + been + infinitive + -ing

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Examples

Affirmative sentences:

I have been playing handball. I've been playing handball.

You have been playing handball. You've been playing handball.

Negative sentences:

I have not been playing handball. I've not been playing handball. I haven't been playing handball.

You have not been playing handball. You've not been playing handball. You haven't been playing handball.

Questions:

Have I been playing handball?

Have you been playing handball?