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