English verb conjugation MUST VARY

Regular verb: vary - varied - varied

Affirmation

Simple form

I must vary
you must vary
he must vary
we must vary
you must vary
they must vary

V-ing form

I must be varying
you must be varying
he must be varying
we must be varying
you must be varying
they must be varying

Perfect

I must have varied
you must have varied
he must have varied
we must have varied
you must have varied
they must have varied

V-ing perfect

I must have been varying
you must have been varying
he must have been varying
we must have been varying
you must have been varying
they must have been varying

Negation

Simple form

I must not vary
you must not vary
he must not vary
we must not vary
you must not vary
they must not vary

V-ing form

I must not be varying
you must not be varying
he must not be varying
we must not be varying
you must not be varying
they must not be varying

Perfect

I must not have varied
you must not have varied
he must not have varied
we must not have varied
you must not have varied
they must not have varied

V-ing perfect

I must not have been varying
you must not have been varying
he must not have been varying
we must not have been varying
you must not have been varying
they must not have been varying

Interrogative form

Simple form

must I vary?
must you vary?
must he vary?
must we vary?
must you vary?
must they vary?

V-ing form

must I be varying?
must you be varying?
must he be varying?
must we be varying?
must you be varying?
must they be varying?

Perfect

must I have varied?
must you have varied?
must he have varied?
must we have varied?
must you have varied?
must they have varied?

V-ing perfect

must I have been varying?
must you have been varying?
must he have been varying?
must we have been varying?
must you have been varying?
must they have been varying?

Interro-negative form

Simple form

must I not vary?
must you not vary?
must he not vary?
must we not vary?
must you not vary?
must they not vary?

V-ing form

must I not be varying?
must you not be varying?
must he not be varying?
must we not be varying?
must you not be varying?
must they not be varying?

Perfect

must I not have varied?
must you not have varied?
must he not have varied?
must we not have varied?
must you not have varied?
must they not have varied?

V-ing perfect

must I not have been varying?
must you not have been varying?
must he not have been varying?
must we not have been varying?
must you not have been varying?
must they not have been varying?

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