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