English verb conjugation COULD DEVOICE

Regular verb: devoice - devoiced - devoiced

Affirmation

Simple form

I could devoice
you could devoice
she could devoice
we could devoice
you could devoice
they could devoice

V-ing form

I could be devoicing
you could be devoicing
she could be devoicing
we could be devoicing
you could be devoicing
they could be devoicing

Perfect

I could have devoiced
you could have devoiced
she could have devoiced
we could have devoiced
you could have devoiced
they could have devoiced

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I devoice?
could you devoice?
could she devoice?
could we devoice?
could you devoice?
could they devoice?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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