English verb conjugation MUST WHITEN

Regular verb: whiten - whitened - whitened

Affirmation

Simple form

I must whiten
you must whiten
he must whiten
we must whiten
you must whiten
they must whiten

V-ing form

I must be whitening
you must be whitening
he must be whitening
we must be whitening
you must be whitening
they must be whitening

Perfect

I must have whitened
you must have whitened
he must have whitened
we must have whitened
you must have whitened
they must have whitened

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I whiten?
must you whiten?
must he whiten?
must we whiten?
must you whiten?
must they whiten?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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