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