I have been sleeping for 2 hours.I have been working on this project for 2 hours.She is nervous she has been working all day.I have been playing with that card all day.She has been reading that book for 3 hours.I have been playing footbal for 4 hours.She has been working very hard. Tom has been traveling all around the world.Maia has been writing this composition for 2 hours.Maria has been walking for 2 hours and now she is tired.i have been writing this book since yesterday.