English verb conjugation COULD SPARKLE

Regular verb: sparkle - sparkled - sparkled

Affirmation

Simple form

I could sparkle
you could sparkle
he could sparkle
we could sparkle
you could sparkle
they could sparkle

V-ing form

I could be sparkling
you could be sparkling
he could be sparkling
we could be sparkling
you could be sparkling
they could be sparkling

Perfect

I could have sparkled
you could have sparkled
he could have sparkled
we could have sparkled
you could have sparkled
they could have sparkled

V-ing perfect

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

Negation

Simple form

I could not sparkle
you could not sparkle
he could not sparkle
we could not sparkle
you could not sparkle
they could not sparkle

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I sparkle?
could you sparkle?
could he sparkle?
could we sparkle?
could you sparkle?
could they sparkle?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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