English verb conjugation MUST KNIFE

Regular verb: knife - knifed - knifed

Affirmation

Simple form

I must knife
you must knife
she must knife
we must knife
you must knife
they must knife

V-ing form

I must be knifing
you must be knifing
she must be knifing
we must be knifing
you must be knifing
they must be knifing

Perfect

I must have knifed
you must have knifed
she must have knifed
we must have knifed
you must have knifed
they must have knifed

V-ing perfect

I must have been knifing
you must have been knifing
she must have been knifing
we must have been knifing
you must have been knifing
they must have been knifing

Negation

Simple form

I must not knife
you must not knife
she must not knife
we must not knife
you must not knife
they must not knife

V-ing form

I must not be knifing
you must not be knifing
she must not be knifing
we must not be knifing
you must not be knifing
they must not be knifing

Perfect

I must not have knifed
you must not have knifed
she must not have knifed
we must not have knifed
you must not have knifed
they must not have knifed

V-ing perfect

I must not have been knifing
you must not have been knifing
she must not have been knifing
we must not have been knifing
you must not have been knifing
they must not have been knifing

Interrogative form

Simple form

must I knife?
must you knife?
must she knife?
must we knife?
must you knife?
must they knife?

V-ing form

must I be knifing?
must you be knifing?
must she be knifing?
must we be knifing?
must you be knifing?
must they be knifing?

Perfect

must I have knifed?
must you have knifed?
must she have knifed?
must we have knifed?
must you have knifed?
must they have knifed?

V-ing perfect

must I have been knifing?
must you have been knifing?
must she have been knifing?
must we have been knifing?
must you have been knifing?
must they have been knifing?

Interro-negative form

Simple form

must I not knife?
must you not knife?
must she not knife?
must we not knife?
must you not knife?
must they not knife?

V-ing form

must I not be knifing?
must you not be knifing?
must she not be knifing?
must we not be knifing?
must you not be knifing?
must they not be knifing?

Perfect

must I not have knifed?
must you not have knifed?
must she not have knifed?
must we not have knifed?
must you not have knifed?
must they not have knifed?

V-ing perfect

must I not have been knifing?
must you not have been knifing?
must she not have been knifing?
must we not have been knifing?
must you not have been knifing?
must they not have been knifing?

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