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