English verb conjugation MUST FROST

Regular verb: frost - frosted - frosted

Affirmation

Simple form

I must frost
you must frost
he must frost
we must frost
you must frost
they must frost

V-ing form

I must be frosting
you must be frosting
he must be frosting
we must be frosting
you must be frosting
they must be frosting

Perfect

I must have frosted
you must have frosted
he must have frosted
we must have frosted
you must have frosted
they must have frosted

V-ing perfect

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

Negation

Simple form

I must not frost
you must not frost
he must not frost
we must not frost
you must not frost
they must not frost

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I frost?
must you frost?
must he frost?
must we frost?
must you frost?
must they frost?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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