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