When do you use it? -> pg 89 in your textbook
- When something started in the past, and is still happening now.
- When you want to emphasize that something has been happening for a long time, or to emphasize that something has not finished yet.
-When something has happened for a vague amount of time.
I have been studying English for six years.
He has been sleeping since the start of the lesson.
She has been writing all weekend.
They have been talking all day long.