English.Web: Tenses Present Perfect Continuous Form

Question:	Positive
I have been working You have been working He has been working We have been working You have been working They have been working	Have I been working? Have you been working? Has he been working? Have we been working? Have you been working? Have they been working?
Negative:	Negative Question:
I haven't been working You haven't been working He hasn't been working We haven't been working You haven't been working They haven't been working	Haven't I been working? Haven't you been working? Hasn't he been working? Haven't we been working? Haven't you been working? Haven't they been working?