English verb conjugation MUST CONCUSS

Regular verb: concuss - concussed - concussed

Affirmation

Simple form

I must concuss
you must concuss
he must concuss
we must concuss
you must concuss
they must concuss

V-ing form

I must be concussing
you must be concussing
he must be concussing
we must be concussing
you must be concussing
they must be concussing

Perfect

I must have concussed
you must have concussed
he must have concussed
we must have concussed
you must have concussed
they must have concussed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I concuss?
must you concuss?
must he concuss?
must we concuss?
must you concuss?
must they concuss?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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