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