English verb conjugation CAN BUTTON

Regular verb: button - buttoned - buttoned

Affirmation

Simple form

I can button
you can button
he can button
we can button
you can button
they can button

V-ing form

I can be buttoning
you can be buttoning
he can be buttoning
we can be buttoning
you can be buttoning
they can be buttoning

Perfect

I can have buttoned
you can have buttoned
he can have buttoned
we can have buttoned
you can have buttoned
they can have buttoned

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

can I button?
can you button?
can he button?
can we button?
can you button?
can they button?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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