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