English verb conjugation MUST RAREFY

Regular verb: rarefy - rarefied - rarefied

Affirmation

Simple form

I must rarefy
you must rarefy
he must rarefy
we must rarefy
you must rarefy
they must rarefy

V-ing form

I must be rarefying
you must be rarefying
he must be rarefying
we must be rarefying
you must be rarefying
they must be rarefying

Perfect

I must have rarefied
you must have rarefied
he must have rarefied
we must have rarefied
you must have rarefied
they must have rarefied

V-ing perfect

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

Negation

Simple form

I mustn't rarefy
you mustn't rarefy
he mustn't rarefy
we mustn't rarefy
you mustn't rarefy
they mustn't rarefy

V-ing form

I mustn't be rarefying
you mustn't be rarefying
he mustn't be rarefying
we mustn't be rarefying
you mustn't be rarefying
they mustn't be rarefying

Perfect

I mustn't have rarefied
you mustn't have rarefied
he mustn't have rarefied
we mustn't have rarefied
you mustn't have rarefied
they mustn't have rarefied

V-ing perfect

I mustn't have been rarefying
you mustn't have been rarefying
he mustn't have been rarefying
we mustn't have been rarefying
you mustn't have been rarefying
they mustn't have been rarefying

Interrogative form

Simple form

must I rarefy?
must you rarefy?
must he rarefy?
must we rarefy?
must you rarefy?
must they rarefy?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

mustn't I rarefy?
mustn't you rarefy?
mustn't he rarefy?
mustn't we rarefy?
mustn't you rarefy?
mustn't they rarefy?

V-ing form

mustn't I be rarefying?
mustn't you be rarefying?
mustn't he be rarefying?
mustn't we be rarefying?
mustn't you be rarefying?
mustn't they be rarefying?

Perfect

mustn't I have rarefied?
mustn't you have rarefied?
mustn't he have rarefied?
mustn't we have rarefied?
mustn't you have rarefied?
mustn't they have rarefied?

V-ing perfect

mustn't I have been rarefying?
mustn't you have been rarefying?
mustn't he have been rarefying?
mustn't we have been rarefying?
mustn't you have been rarefying?
mustn't they have been rarefying?

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