English verb conjugation MUST SCARF

Regular verb: scarf - scarfed - scarfed

Affirmation

Simple form

I must scarf
you must scarf
he must scarf
we must scarf
you must scarf
they must scarf

V-ing form

I must be scarfing
you must be scarfing
he must be scarfing
we must be scarfing
you must be scarfing
they must be scarfing

Perfect

I must have scarfed
you must have scarfed
he must have scarfed
we must have scarfed
you must have scarfed
they must have scarfed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I scarf?
must you scarf?
must he scarf?
must we scarf?
must you scarf?
must they scarf?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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