English verb conjugation MUST UNDERSTATE

Regular verb: understate - understated - understated

Affirmation

Simple form

I must understate
you must understate
he must understate
we must understate
you must understate
they must understate

V-ing form

I must be understating
you must be understating
he must be understating
we must be understating
you must be understating
they must be understating

Perfect

I must have understated
you must have understated
he must have understated
we must have understated
you must have understated
they must have understated

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I understate?
must you understate?
must he understate?
must we understate?
must you understate?
must they understate?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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