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 couldn't silver
you couldn't silver
he couldn't silver
we couldn't silver
you couldn't silver
they couldn't silver

V-ing form

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

Perfect

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

V-ing perfect

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

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

V-ing form

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

Perfect

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

V-ing perfect

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

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