English verb conjugation MUST FALL

Irregular verb: fall - fell - fallen

Affirmation

Simple form

I must fall
you must fall
he must fall
we must fall
you must fall
they must fall

V-ing form

I must be falling
you must be falling
he must be falling
we must be falling
you must be falling
they must be falling

Perfect

I must have fallen
you must have fallen
he must have fallen
we must have fallen
you must have fallen
they must have fallen

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I fall?
must you fall?
must he fall?
must we fall?
must you fall?
must they fall?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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