don't I comb? don't you comb? doesn't he comb? don't we comb? don't you comb? don't they comb?
Present continuous
am I not combing? aren't you combing? isn't he combing? aren't we combing? aren't you combing? aren't they combing?
Preterite
didn't I comb? didn't you comb? didn't he comb? didn't we comb? didn't you comb? didn't they comb?
Preterite continuous
wasn't I combing? weren't you combing? wasn't he combing? weren't we combing? weren't you combing? weren't they combing?
Present perfect
haven't I combed? haven't you combed? hasn't he combed? haven't we combed? haven't you combed? haven't they combed?
Present perfect continuous
haven't I been combing? haven't you been combing? hasn't he been combing? haven't we been combing? haven't you been combing? haven't they been combing?
Pluperfect
hadn't I combed? hadn't you combed? hadn't he combed? hadn't we combed? hadn't you combed? hadn't they combed?
Pluperfect continuous
hadn't I been combing? hadn't you been combing? hadn't he been combing? hadn't we been combing? hadn't you been combing? hadn't they been combing?
Future
won't I comb? won't you comb? won't he comb? won't we comb? won't you comb? won't they comb?
Future continuous
won't I be combing? won't you be combing? won't he be combing? won't we be combing? won't you be combing? won't they be combing?
Future perfect
won't I have combed? won't you have combed? won't he have combed? won't we have combed? won't you have combed? won't they have combed?
Future perfect continuous
won't I have been combing? won't you have been combing? won't he have been combing? won't we have been combing? won't you have been combing? won't they have been combing?
Conditional
Present
wouldn't I comb? wouldn't you comb? wouldn't he comb? wouldn't we comb? wouldn't you comb? wouldn't they comb?
Present continuous
wouldn't I be combing? wouldn't you be combing? wouldn't he be combing? wouldn't we be combing? wouldn't you be combing? wouldn't they be combing?
Past
wouldn't I have combed? wouldn't you have combed? wouldn't he have combed? wouldn't we have combed? wouldn't you have combed? wouldn't they have combed?
Past continuous
wouldn't I have been combing? wouldn't you have been combing? wouldn't he have been combing? wouldn't we have been combing? wouldn't you have been combing? wouldn't they have been combing?