I __________(read) this book for four hours
I have been reading this book for four hours
Recently. I __________ (feel) really tired
Recently, I have ben feeling really tired
The kids __________ (play) in the playground all afternoon
The kids have been playing in the playground all afternoon
You __________ (not study) enough to do well in school.
You haven't been studying enough to do well in school.
Maria __________ (not drink) enough water
Maria hasn't been drinking enough water
______ you __________ (study) English for a long time?
Have you been studying English for a long time?
How long ______ he _________ (work) in the bank?
How long has he been working in the bank?
We __________ (wait) here for two hours!
We have been waiting here for two hours!
