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