English verb conjugation COULD SILVER

Regular verb: silver - silvered - silvered

Affirmation

Simple form

I could silver
you could silver
he could silver
we could silver
you could silver
they could silver

V-ing form

I could be silvering
you could be silvering
he could be silvering
we could be silvering
you could be silvering
they could be silvering

Perfect

I could have silvered
you could have silvered
he could have silvered
we could have silvered
you could have silvered
they could have silvered

V-ing perfect

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

Negation

Simple form

I could not silver
you could not silver
he could not silver
we could not silver
you could not silver
they could not silver

V-ing form

I could not be silvering
you could not be silvering
he could not be silvering
we could not be silvering
you could not be silvering
they could not be silvering

Perfect

I could not have silvered
you could not have silvered
he could not have silvered
we could not have silvered
you could not have silvered
they could not have silvered

V-ing perfect

I could not have been silvering
you could not have been silvering
he could not have been silvering
we could not have been silvering
you could not have been silvering
they could not have been silvering

Interrogative form

Simple form

could I silver?
could you silver?
could he silver?
could we silver?
could you silver?
could they silver?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

could I not silver?
could you not silver?
could he not silver?
could we not silver?
could you not silver?
could they not silver?

V-ing form

could I not be silvering?
could you not be silvering?
could he not be silvering?
could we not be silvering?
could you not be silvering?
could they not be silvering?

Perfect

could I not have silvered?
could you not have silvered?
could he not have silvered?
could we not have silvered?
could you not have silvered?
could they not have silvered?

V-ing perfect

could I not have been silvering?
could you not have been silvering?
could he not have been silvering?
could we not have been silvering?
could you not have been silvering?
could they not have been silvering?

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