English verb conjugation CAN KNIFE

Regular verb: knife - knifed - knifed

Affirmation

Simple form

I can knife
you can knife
he can knife
we can knife
you can knife
they can knife

V-ing form

I can be knifing
you can be knifing
he can be knifing
we can be knifing
you can be knifing
they can be knifing

Perfect

I can have knifed
you can have knifed
he can have knifed
we can have knifed
you can have knifed
they can have knifed

V-ing perfect

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

Negation

Simple form

I cannot knife
you cannot knife
he cannot knife
we cannot knife
you cannot knife
they cannot knife

V-ing form

I cannot be knifing
you cannot be knifing
he cannot be knifing
we cannot be knifing
you cannot be knifing
they cannot be knifing

Perfect

I cannot have knifed
you cannot have knifed
he cannot have knifed
we cannot have knifed
you cannot have knifed
they cannot have knifed

V-ing perfect

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

Interrogative form

Simple form

can I knife?
can you knife?
can he knife?
can we knife?
can you knife?
can they knife?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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