如题I have been watching TV for 2 hours.这个句子中那些是主语,谓语,宾语?

I have been sleeping是什么语态?如题,饿是英语菜鸟, I have been selling I have been trying I have ever been I too have been I have been to. I have been I have been in. I am concerned about U 和I have been concerned about U有什么区别.如题 have been done , have been doing ,have done的区别是什么如题 have been,have gone的区别如题 I have been there,have been 是have been in还是have been to的缩写? i have always been there i have never been there I HAVE NEVER BEEN,能否说I never have been I have been so serious I have been so serious Baby I am willing to wait as long as you have been happy to wait如题、 如题I have been watching TV for 2 hours.这个句子中那些是主语,谓语,宾语? I have been in Britain Three months now这句句子正确吗?如题,不正确的话怎么改.