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 couldn't evolve
you couldn't evolve
he couldn't evolve
we couldn't evolve
you couldn't evolve
they couldn't evolve

V-ing form

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

Perfect

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

V-ing perfect

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

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

V-ing form

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

Perfect

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

V-ing perfect

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

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