English verb conjugation CAN STAPLE

Regular verb: staple - stapled - stapled

Affirmation

Simple form

I can staple
you can staple
he can staple
we can staple
you can staple
they can staple

V-ing form

I can be stapling
you can be stapling
he can be stapling
we can be stapling
you can be stapling
they can be stapling

Perfect

I can have stapled
you can have stapled
he can have stapled
we can have stapled
you can have stapled
they can have stapled

V-ing perfect

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

Negation

Simple form

I cannot staple
you cannot staple
he cannot staple
we cannot staple
you cannot staple
they cannot staple

V-ing form

I cannot be stapling
you cannot be stapling
he cannot be stapling
we cannot be stapling
you cannot be stapling
they cannot be stapling

Perfect

I cannot have stapled
you cannot have stapled
he cannot have stapled
we cannot have stapled
you cannot have stapled
they cannot have stapled

V-ing perfect

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

Interrogative form

Simple form

can I staple?
can you staple?
can he staple?
can we staple?
can you staple?
can they staple?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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