English verb conjugation COULD DEVOLVE

Regular verb: devolve - devolved - devolved

Affirmation

Simple form

I could devolve
you could devolve
he could devolve
we could devolve
you could devolve
they could devolve

V-ing form

I could be devolving
you could be devolving
he could be devolving
we could be devolving
you could be devolving
they could be devolving

Perfect

I could have devolved
you could have devolved
he could have devolved
we could have devolved
you could have devolved
they could have devolved

V-ing perfect

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

Negation

Simple form

I couldn't devolve
you couldn't devolve
he couldn't devolve
we couldn't devolve
you couldn't devolve
they couldn't devolve

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I devolve?
could you devolve?
could he devolve?
could we devolve?
could you devolve?
could they devolve?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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