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