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