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