English verb conjugation SHOULD UNDO

Irregular verb: undo - undid - undone


Affirmation

Simple form

I should undo
you should undo
he should undo
we should undo
you should undo
they should undo

V-ing form

I should be undoing
you should be undoing
he should be undoing
we should be undoing
you should be undoing
they should be undoing

Perfect

I should have undone
you should have undone
he should have undone
we should have undone
you should have undone
they should have undone

V-ing perfect

I should have been undoing
you should have been undoing
he should have been undoing
we should have been undoing
you should have been undoing
they should have been undoing

Negation

Simple form

I should not undo
you should not undo
he should not undo
we should not undo
you should not undo
they should not undo

V-ing form

I should not be undoing
you should not be undoing
he should not be undoing
we should not be undoing
you should not be undoing
they should not be undoing

Perfect

I should not have undone
you should not have undone
he should not have undone
we should not have undone
you should not have undone
they should not have undone

V-ing perfect

I should not have been undoing
you should not have been undoing
he should not have been undoing
we should not have been undoing
you should not have been undoing
they should not have been undoing

Interrogative form

Simple form

should I undo?
should you undo?
should he undo?
should we undo?
should you undo?
should they undo?

V-ing form

should I be undoing?
should you be undoing?
should he be undoing?
should we be undoing?
should you be undoing?
should they be undoing?

Perfect

should I have undone?
should you have undone?
should he have undone?
should we have undone?
should you have undone?
should they have undone?

V-ing perfect

should I have been undoing?
should you have been undoing?
should he have been undoing?
should we have been undoing?
should you have been undoing?
should they have been undoing?

Interro-negative form

Simple form

should I not undo?
should you not undo?
should he not undo?
should we not undo?
should you not undo?
should they not undo?

V-ing form

should I not be undoing?
should you not be undoing?
should he not be undoing?
should we not be undoing?
should you not be undoing?
should they not be undoing?

Perfect

should I not have undone?
should you not have undone?
should he not have undone?
should we not have undone?
should you not have undone?
should they not have undone?

V-ing perfect

should I not have been undoing?
should you not have been undoing?
should he not have been undoing?
should we not have been undoing?
should you not have been undoing?
should they not have been undoing?