English verb conjugation MUST COUNTERMAND

Regular verb: countermand - countermanded - countermanded

Affirmation

Simple form

I must countermand
you must countermand
he must countermand
we must countermand
you must countermand
they must countermand

V-ing form

I must be countermanding
you must be countermanding
he must be countermanding
we must be countermanding
you must be countermanding
they must be countermanding

Perfect

I must have countermanded
you must have countermanded
he must have countermanded
we must have countermanded
you must have countermanded
they must have countermanded

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I countermand?
must you countermand?
must he countermand?
must we countermand?
must you countermand?
must they countermand?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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