English verb conjugation MUST SEVER

Regular verb: sever - severed - severed

Affirmation

Simple form

I must sever
you must sever
she must sever
we must sever
you must sever
they must sever

V-ing form

I must be severing
you must be severing
she must be severing
we must be severing
you must be severing
they must be severing

Perfect

I must have severed
you must have severed
she must have severed
we must have severed
you must have severed
they must have severed

V-ing perfect

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

Negation

Simple form

I must not sever
you must not sever
she must not sever
we must not sever
you must not sever
they must not sever

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I sever?
must you sever?
must she sever?
must we sever?
must you sever?
must they sever?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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