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