Present Perfect Progressive - Diagram
We use the Present Perfect Progressive for actions in the past which have a connection to the present.
We use the Present Perfect for actions beginning in the past and still continuing. The focus is on the action.
We use the Present Perfect Progressive for recently completed actions. The focus is on the action.
Present Perfect Progressive - Use
The Present Perfect Progressive is not easy to understand for ESL students. It is a combination of past and present where actions in the past have something to do with the present. The focus is not on the result (this is the Present Perfect) but on the action itself.
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.)
2) Recently completed actions (focus is on the action)
She has been watching too many videos. (It was too much time.)
Form of the Present Perfect Progressive
We form the Present Perfect with have, been and the verb with the ending -ing.
have/has + been + Infinitiv + -ing
has: 3rd person singular (he, she, it)
have: all other forms
all day - the whole day - since - for - Questions with how long