Conjugation and declension of "undo" in English

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undo, Verb
undid / undone / undoing / undoes
undo, Noun
pl.undoes

Conjugation of the verb undo[ˈʌnˈdu:], irregular

All forms Indicative Conditional Participles Infinitives

Indicative

Present Indefinite

I undo
you undo
he/she/it undoes
we undo
you undo
they undo

Present Continuous

I am undoing
you are undoing
he/she/it is undoing
we are undoing
you are undoing
they are undoing

Present Perfect

I have undone
you have undone
he/she/it has undone
we have undone
you have undone
they have undone

Present Perfect Continuous

I have been undoing
you have been undoing
he/she/it has been undoing
we have been undoing
you have been undoing
they have been undoing

Past Indefinite

I undid
you undid
he/she/it undid
we undid
you undid
they undid

Past Continuous

I was undoing
you were undoing
he/she/it was undoing
we were undoing
you were undoing
they were undoing

Past Perfect

I had undone
you had undone
he/she/it had undone
we had undone
you had undone
they had undone

Past Perfect Continuous

I had been undoing
you had been undoing
he/she/it had been undoing
we had been undoing
you had been undoing
they had been undoing

Future Indefinite

I will undo
you will undo
he/she/it will undo
we will undo
you will undo
they will undo

Future Continuous

I will be undoing
you will be undoing
he/she/it will be undoing
we will be undoing
you will be undoing
they will be undoing

Future Perfect

I will have undone
you will have undone
he/she/it will have undone
we will have undone
you will have undone
they will have undone

Future Perfect Continuous

I will have been undoing
you will have been undoing
he/she/it will have been undoing
we will have been undoing
you will have been undoing
they will have been undoing

Conditional

Conditional Present

I would undo
you would undo
he/she/it would undo
we would undo
you would undo
they would undo

Conditional Present Continuous

I would be undoing
you would be undoing
he/she/it would be undoing
we would be undoing
you would be undoing
they would be undoing

Conditional Perfect

I would have undone
you would have undone
he/she/it would have undone
we would have undone
you would have undone
they would have undone

Conditional Perfect Continuous

I would have been undoing
you would have been undoing
he/she/it would have been undoing
we would have been undoing
you would have been undoing
they would have been undoing

Participles

Present

undoing

Past

undone

Infinitives

Infinitives

to undo
to have undone
to be undoing
to have been undoing

Declension of the noun undo[ˈʌnˈdu:]pl.undoes

Singular

Plural

Singular

Common case

undo

undoes

Possessive case

undo's / undo'

undoes'

Plural