English verb conjugation MUST SCRATCH

Regular verb: scratch - scratched - scratched

Affirmation

Simple form

I must scratch
you must scratch
he must scratch
we must scratch
you must scratch
they must scratch

V-ing form

I must be scratching
you must be scratching
he must be scratching
we must be scratching
you must be scratching
they must be scratching

Perfect

I must have scratched
you must have scratched
he must have scratched
we must have scratched
you must have scratched
they must have scratched

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I scratch?
must you scratch?
must he scratch?
must we scratch?
must you scratch?
must they scratch?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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