English verb conjugation MUST UNDERINSURE

Regular verb: underinsure - underinsured - underinsured

Affirmation

Simple form

I must underinsure
you must underinsure
he must underinsure
we must underinsure
you must underinsure
they must underinsure

V-ing form

I must be underinsuring
you must be underinsuring
he must be underinsuring
we must be underinsuring
you must be underinsuring
they must be underinsuring

Perfect

I must have underinsured
you must have underinsured
he must have underinsured
we must have underinsured
you must have underinsured
they must have underinsured

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I underinsure?
must you underinsure?
must he underinsure?
must we underinsure?
must you underinsure?
must they underinsure?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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