Present Perfect Progressive

The present perfect progressive expresses an action that recently stopped or is still going on. It puts emphasis on the duration or course of the action. But I now the meaning, the real problem is when I am talking. 

Signal words

all day, the whole day, since, for

Questions with how long

Examples:

• I'm so tired, I've been studying.
• I've been running, so I'm really hot.
• It's been raining, the pavement is wet.
• I've been reading your book, it's very good.
• I've been living in London for two years.
• She's been working here since 2004.
• We've been waiting for the bus for hours.

Form

have/has + been + infinitive + -ing

This website has a lot of information and some excercises: http://www.perfect-english-grammar.com/present-perfect-continuous-exercise-1.html

The next video is going to being you an idea of the correct use of this english tense: https://www.youtube.com/watch?v=MyrREnqBou8

And this video is an example of the ordinary use of the tense: https://www.youtube.com/watch?v=mWfDrPeBDl8