English verb conjugation CAN UNDO

Irregular verb: undo - undid - undone

Affirmation

Simple form

I can undo
you can undo
he can undo
we can undo
you can undo
they can undo

V-ing form

I can be undoing
you can be undoing
he can be undoing
we can be undoing
you can be undoing
they can be undoing

Perfect

I can have undone
you can have undone
he can have undone
we can have undone
you can have undone
they can have undone

V-ing perfect

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

Negation

Simple form

I can't undo
you can't undo
he can't undo
we can't undo
you can't undo
they can't undo

V-ing form

I can't be undoing
you can't be undoing
he can't be undoing
we can't be undoing
you can't be undoing
they can't be undoing

Perfect

I can't have undone
you can't have undone
he can't have undone
we can't have undone
you can't have undone
they can't have undone

V-ing perfect

I can't have been undoing
you can't have been undoing
he can't have been undoing
we can't have been undoing
you can't have been undoing
they can't have been undoing

Interrogative form

Simple form

can I undo?
can you undo?
can he undo?
can we undo?
can you undo?
can they undo?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

can't I undo?
can't you undo?
can't he undo?
can't we undo?
can't you undo?
can't they undo?

V-ing form

can't I be undoing?
can't you be undoing?
can't he be undoing?
can't we be undoing?
can't you be undoing?
can't they be undoing?

Perfect

can't I have undone?
can't you have undone?
can't he have undone?
can't we have undone?
can't you have undone?
can't they have undone?

V-ing perfect

can't I have been undoing?
can't you have been undoing?
can't he have been undoing?
can't we have been undoing?
can't you have been undoing?
can't they have been undoing?

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