English verb conjugation MUST ARCH

Regular verb: arch - arched - arched

Affirmation

Simple form

I must arch
you must arch
he must arch
we must arch
you must arch
they must arch

V-ing form

I must be arching
you must be arching
he must be arching
we must be arching
you must be arching
they must be arching

Perfect

I must have arched
you must have arched
he must have arched
we must have arched
you must have arched
they must have arched

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I arch?
must you arch?
must he arch?
must we arch?
must you arch?
must they arch?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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