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