English verb conjugation CAN BUTTRESS

Regular verb: buttress - buttressed - buttressed

Affirmation

Simple form

I can buttress
you can buttress
he can buttress
we can buttress
you can buttress
they can buttress

V-ing form

I can be buttressing
you can be buttressing
he can be buttressing
we can be buttressing
you can be buttressing
they can be buttressing

Perfect

I can have buttressed
you can have buttressed
he can have buttressed
we can have buttressed
you can have buttressed
they can have buttressed

V-ing perfect

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

Negation

Simple form

I cannot buttress
you cannot buttress
he cannot buttress
we cannot buttress
you cannot buttress
they cannot buttress

V-ing form

I cannot be buttressing
you cannot be buttressing
he cannot be buttressing
we cannot be buttressing
you cannot be buttressing
they cannot be buttressing

Perfect

I cannot have buttressed
you cannot have buttressed
he cannot have buttressed
we cannot have buttressed
you cannot have buttressed
they cannot have buttressed

V-ing perfect

I cannot have been buttressing
you cannot have been buttressing
he cannot have been buttressing
we cannot have been buttressing
you cannot have been buttressing
they cannot have been buttressing

Interrogative form

Simple form

can I buttress?
can you buttress?
can he buttress?
can we buttress?
can you buttress?
can they buttress?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

can I not buttress?
can you not buttress?
can he not buttress?
can we not buttress?
can you not buttress?
can they not buttress?

V-ing form

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

Perfect

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

V-ing perfect

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

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