English verb conjugation MUST UNDERVALUE

Regular verb: undervalue - undervalued - undervalued

Affirmation

Simple form

I must undervalue
you must undervalue
he must undervalue
we must undervalue
you must undervalue
they must undervalue

V-ing form

I must be undervaluing
you must be undervaluing
he must be undervaluing
we must be undervaluing
you must be undervaluing
they must be undervaluing

Perfect

I must have undervalued
you must have undervalued
he must have undervalued
we must have undervalued
you must have undervalued
they must have undervalued

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I undervalue?
must you undervalue?
must he undervalue?
must we undervalue?
must you undervalue?
must they undervalue?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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