Present Perfect Continuous - All forms
POSITIVE I have been sleeping . You have been sleeping . We have been sleeping . They have been sleeping . He has been sleeping . She has been sleeping . It has been sleeping . NEGATIVE I have not been sleeping . You have not been sleeping . We have not been sleeping . They have not been sleeping . He has not been sleeping . She has not been sleeping . It has not been sleeping . INTERROGATIVE Have I been sleeping ? Have you been sleeping ? Have we been sleeping ? Have they been sleeping ? Has he been sleeping ? Has she been sleeping ? Has it been sleeping ?