English verb conjugation COULD REFRACT

Regular verb: refract - refracted - refracted

Affirmation

Simple form

I could refract
you could refract
she could refract
we could refract
you could refract
they could refract

V-ing form

I could be refracting
you could be refracting
she could be refracting
we could be refracting
you could be refracting
they could be refracting

Perfect

I could have refracted
you could have refracted
she could have refracted
we could have refracted
you could have refracted
they could have refracted

V-ing perfect

I could have been refracting
you could have been refracting
she could have been refracting
we could have been refracting
you could have been refracting
they could have been refracting

Negation

Simple form

I couldn't refract
you couldn't refract
she couldn't refract
we couldn't refract
you couldn't refract
they couldn't refract

V-ing form

I couldn't be refracting
you couldn't be refracting
she couldn't be refracting
we couldn't be refracting
you couldn't be refracting
they couldn't be refracting

Perfect

I couldn't have refracted
you couldn't have refracted
she couldn't have refracted
we couldn't have refracted
you couldn't have refracted
they couldn't have refracted

V-ing perfect

I couldn't have been refracting
you couldn't have been refracting
she couldn't have been refracting
we couldn't have been refracting
you couldn't have been refracting
they couldn't have been refracting

Interrogative form

Simple form

could I refract?
could you refract?
could she refract?
could we refract?
could you refract?
could they refract?

V-ing form

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

Perfect

could I have refracted?
could you have refracted?
could she have refracted?
could we have refracted?
could you have refracted?
could they have refracted?

V-ing perfect

could I have been refracting?
could you have been refracting?
could she have been refracting?
could we have been refracting?
could you have been refracting?
could they have been refracting?

Interro-negative form

Simple form

couldn't I refract?
couldn't you refract?
couldn't she refract?
couldn't we refract?
couldn't you refract?
couldn't they refract?

V-ing form

couldn't I be refracting?
couldn't you be refracting?
couldn't she be refracting?
couldn't we be refracting?
couldn't you be refracting?
couldn't they be refracting?

Perfect

couldn't I have refracted?
couldn't you have refracted?
couldn't she have refracted?
couldn't we have refracted?
couldn't you have refracted?
couldn't they have refracted?

V-ing perfect

couldn't I have been refracting?
couldn't you have been refracting?
couldn't she have been refracting?
couldn't we have been refracting?
couldn't you have been refracting?
couldn't they have been refracting?

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