1 Carina have been studying English for 5 years.
2 What have you been doing in my room.
3 Mum have been working for her new company for very long.
4 No, I have not been playing your tablet.
5 How long have you been waiting for me here?
Объяснение:
Present Perfect Continuous образуется при глагола have+ been+ глагол с окончанием -ing-