English verb conjugation MUST FORESTALL

Regular verb: forestall - forestalled - forestalled

Affirmation

Simple form

I must forestall
you must forestall
he must forestall
we must forestall
you must forestall
they must forestall

V-ing form

I must be forestalling
you must be forestalling
he must be forestalling
we must be forestalling
you must be forestalling
they must be forestalling

Perfect

I must have forestalled
you must have forestalled
he must have forestalled
we must have forestalled
you must have forestalled
they must have forestalled

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I forestall?
must you forestall?
must he forestall?
must we forestall?
must you forestall?
must they forestall?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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