English verb conjugation MUST BRIGHTEN

Regular verb: brighten - brightened - brightened

Affirmation

Simple form

I must brighten
you must brighten
he must brighten
we must brighten
you must brighten
they must brighten

V-ing form

I must be brightening
you must be brightening
he must be brightening
we must be brightening
you must be brightening
they must be brightening

Perfect

I must have brightened
you must have brightened
he must have brightened
we must have brightened
you must have brightened
they must have brightened

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I brighten?
must you brighten?
must he brighten?
must we brighten?
must you brighten?
must they brighten?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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