English verb conjugation MUST REGAIN

Regular verb: regain - regained - regained

Affirmation

Simple form

I must regain
you must regain
he must regain
we must regain
you must regain
they must regain

V-ing form

I must be regaining
you must be regaining
he must be regaining
we must be regaining
you must be regaining
they must be regaining

Perfect

I must have regained
you must have regained
he must have regained
we must have regained
you must have regained
they must have regained

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I regain?
must you regain?
must he regain?
must we regain?
must you regain?
must they regain?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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