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