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