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