English verb conjugation COULD EVOLVE

Regular verb: evolve - evolved - evolved

Affirmation

Simple form

I could evolve
you could evolve
he could evolve
we could evolve
you could evolve
they could evolve

V-ing form

I could be evolving
you could be evolving
he could be evolving
we could be evolving
you could be evolving
they could be evolving

Perfect

I could have evolved
you could have evolved
he could have evolved
we could have evolved
you could have evolved
they could have evolved

V-ing perfect

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

Negation

Simple form

I could not evolve
you could not evolve
he could not evolve
we could not evolve
you could not evolve
they could not evolve

V-ing form

I could not be evolving
you could not be evolving
he could not be evolving
we could not be evolving
you could not be evolving
they could not be evolving

Perfect

I could not have evolved
you could not have evolved
he could not have evolved
we could not have evolved
you could not have evolved
they could not have evolved

V-ing perfect

I could not have been evolving
you could not have been evolving
he could not have been evolving
we could not have been evolving
you could not have been evolving
they could not have been evolving

Interrogative form

Simple form

could I evolve?
could you evolve?
could he evolve?
could we evolve?
could you evolve?
could they evolve?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

could I not evolve?
could you not evolve?
could he not evolve?
could we not evolve?
could you not evolve?
could they not evolve?

V-ing form

could I not be evolving?
could you not be evolving?
could he not be evolving?
could we not be evolving?
could you not be evolving?
could they not be evolving?

Perfect

could I not have evolved?
could you not have evolved?
could he not have evolved?
could we not have evolved?
could you not have evolved?
could they not have evolved?

V-ing perfect

could I not have been evolving?
could you not have been evolving?
could he not have been evolving?
could we not have been evolving?
could you not have been evolving?
could they not have been evolving?

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