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 cannot button
you cannot button
he cannot button
we cannot button
you cannot button
they cannot button

V-ing form

I cannot be buttoning
you cannot be buttoning
he cannot be buttoning
we cannot be buttoning
you cannot be buttoning
they cannot be buttoning

Perfect

I cannot have buttoned
you cannot have buttoned
he cannot have buttoned
we cannot have buttoned
you cannot have buttoned
they cannot have buttoned

V-ing perfect

I cannot have been buttoning
you cannot have been buttoning
he cannot have been buttoning
we cannot have been buttoning
you cannot have been buttoning
they cannot 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 I not button?
can you not button?
can he not button?
can we not button?
can you not button?
can they not button?

V-ing form

can I not be buttoning?
can you not be buttoning?
can he not be buttoning?
can we not be buttoning?
can you not be buttoning?
can they not be buttoning?

Perfect

can I not have buttoned?
can you not have buttoned?
can he not have buttoned?
can we not have buttoned?
can you not have buttoned?
can they not have buttoned?

V-ing perfect

can I not have been buttoning?
can you not have been buttoning?
can he not have been buttoning?
can we not have been buttoning?
can you not have been buttoning?
can they not have been buttoning?

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