English verb conjugation
TO UNDO

Irregular verb: undo - undid - undone

Indicative

Present	Present continuous	Preterite	Preterite continuous
do I undo? do you undo? does he undo? do we undo? do you undo? do they undo?	am I undoing? are you undoing? is he undoing? are we undoing? are you undoing? are they undoing?	did I undo? did you undo? did he undo? did we undo? did you undo? did they undo?	was I undoing? were you undoing? was he undoing? were we undoing? were you undoing? were they undoing?
Present perfect	Present perfect continuous	Pluperfect	Pluperfect continuous
have I undone? have you undone? has he undone? have we undone? have you undone? have they undone?	have I been undoing? have you been undoing? has he been undoing? have we been undoing? have you been undoing? have they been undoing?	had I undone? had you undone? had he undone? had we undone? had you undone? had they undone?	had I been undoing? had you been undoing? had he been undoing? had we been undoing? had you been undoing? had they been undoing?
Future	Future continuous	Future perfect	Future perfect continuous
will I undo? will you undo? will he undo? will we undo? will you undo? will they undo?	will I be undoing? will you be undoing? will he be undoing? will we be undoing? will you be undoing? will they be undoing?	will I have undone? will you have undone? will he have undone? will we have undone? will you have undone? will they have undone?	will I have been undoing? will you have been undoing? will he have been undoing? will we have been undoing? will you have been undoing? will they have been undoing?

Conditional

Present	Present continuous	Past	Past continuous
would I undo? would you undo? would he undo? would we undo? would you undo? would they undo?	would I be undoing? would you be undoing? would he be undoing? would we be undoing? would you be undoing? would they be undoing?	would I have undone? would you have undone? would he have undone? would we have undone? would you have undone? would they have undone?	would I have been undoing? would you have been undoing? would he have been undoing? would we have been undoing? would you have been undoing? would they have been undoing?

Infinitive

Imperative

Infinitive		Imperative
to undo		- - -

Participle

Present	Past
undoing	undone