Present Perfect Continuous

Hi guys
I´m back... uuhuuuuuu
Did u miss me??
So, In this class I explain to you how the present perfect continuous work, in which situations we use it. It´s very simple, simpler than it looks.



Exercises:
http://www.englishpage.com/verbpage/verbs8.htm (Present Perfect x Present Perfect Cont)
http://www.englishpage.com/verbpage/verbs10.htm (Present Cont x Present Perfect Cont)