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 couldn't sparkle
you couldn't sparkle
he couldn't sparkle
we couldn't sparkle
you couldn't sparkle
they couldn't sparkle

V-ing form

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

Perfect

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

V-ing perfect

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

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

V-ing form

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

Perfect

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

V-ing perfect

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

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