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