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