English verb conjugation MUST BEFALL

Irregular verb: befall - befell - befallen

Affirmation

Simple form

I must befall
you must befall
he must befall
we must befall
you must befall
they must befall

V-ing form

I must be befalling
you must be befalling
he must be befalling
we must be befalling
you must be befalling
they must be befalling

Perfect

I must have befallen
you must have befallen
he must have befallen
we must have befallen
you must have befallen
they must have befallen

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I befall?
must you befall?
must he befall?
must we befall?
must you befall?
must they befall?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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