English verb conjugation COULD PERCUSS

Regular verb: percuss - percussed - percussed

Affirmation

Simple form

I could percuss
you could percuss
he could percuss
we could percuss
you could percuss
they could percuss

V-ing form

I could be percussing
you could be percussing
he could be percussing
we could be percussing
you could be percussing
they could be percussing

Perfect

I could have percussed
you could have percussed
he could have percussed
we could have percussed
you could have percussed
they could have percussed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I percuss?
could you percuss?
could he percuss?
could we percuss?
could you percuss?
could they percuss?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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