English verb conjugation COULD CONCUSS

Regular verb: concuss - concussed - concussed

Affirmation

Simple form

I could concuss
you could concuss
he could concuss
we could concuss
you could concuss
they could concuss

V-ing form

I could be concussing
you could be concussing
he could be concussing
we could be concussing
you could be concussing
they could be concussing

Perfect

I could have concussed
you could have concussed
he could have concussed
we could have concussed
you could have concussed
they could have concussed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I concuss?
could you concuss?
could he concuss?
could we concuss?
could you concuss?
could they concuss?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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