English verb conjugation MUST SCOFF

Regular verb: scoff - scoffed - scoffed

Affirmation

Simple form

I must scoff
you must scoff
he must scoff
we must scoff
you must scoff
they must scoff

V-ing form

I must be scoffing
you must be scoffing
he must be scoffing
we must be scoffing
you must be scoffing
they must be scoffing

Perfect

I must have scoffed
you must have scoffed
he must have scoffed
we must have scoffed
you must have scoffed
they must have scoffed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I scoff?
must you scoff?
must he scoff?
must we scoff?
must you scoff?
must they scoff?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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