English verb conjugation CAN CONCUSS

Regular verb: concuss - concussed - concussed

Affirmation

Simple form

I can concuss
you can concuss
he can concuss
we can concuss
you can concuss
they can concuss

V-ing form

I can be concussing
you can be concussing
he can be concussing
we can be concussing
you can be concussing
they can be concussing

Perfect

I can have concussed
you can have concussed
he can have concussed
we can have concussed
you can have concussed
they can have concussed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

can I concuss?
can you concuss?
can he concuss?
can we concuss?
can you concuss?
can they concuss?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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