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