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