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