English verb conjugation COULD SILVER

Regular verb: silver - silvered - silvered

Affirmation

Simple form

I could silver
you could silver
she could silver
we could silver
you could silver
they could silver

V-ing form

I could be silvering
you could be silvering
she could be silvering
we could be silvering
you could be silvering
they could be silvering

Perfect

I could have silvered
you could have silvered
she 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
she 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
she 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
she 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
she 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
she 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 she silver?
could we silver?
could you silver?
could they silver?

V-ing form

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

Perfect

could I have silvered?
could you have silvered?
could she 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 she 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 she 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 she 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 she 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 she 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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