English verb conjugation CAN UNBUTTON

Regular verb: unbutton - unbuttoned - unbuttoned

Affirmation

Simple form

I can unbutton
you can unbutton
he can unbutton
we can unbutton
you can unbutton
they can unbutton

V-ing form

I can be unbuttoning
you can be unbuttoning
he can be unbuttoning
we can be unbuttoning
you can be unbuttoning
they can be unbuttoning

Perfect

I can have unbuttoned
you can have unbuttoned
he can have unbuttoned
we can have unbuttoned
you can have unbuttoned
they can have unbuttoned

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

can I unbutton?
can you unbutton?
can he unbutton?
can we unbutton?
can you unbutton?
can they unbutton?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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