English verb conjugation MUST DESTAIN

Regular verb: destain - destained - destained

Affirmation

Simple form

I must destain
you must destain
he must destain
we must destain
you must destain
they must destain

V-ing form

I must be destaining
you must be destaining
he must be destaining
we must be destaining
you must be destaining
they must be destaining

Perfect

I must have destained
you must have destained
he must have destained
we must have destained
you must have destained
they must have destained

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I destain?
must you destain?
must he destain?
must we destain?
must you destain?
must they destain?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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