English verb conjugation COULD SPARK

Regular verb: spark - sparked - sparked

Affirmation

Simple form

I could spark
you could spark
he could spark
we could spark
you could spark
they could spark

V-ing form

I could be sparking
you could be sparking
he could be sparking
we could be sparking
you could be sparking
they could be sparking

Perfect

I could have sparked
you could have sparked
he could have sparked
we could have sparked
you could have sparked
they could have sparked

V-ing perfect

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

Negation

Simple form

I could not spark
you could not spark
he could not spark
we could not spark
you could not spark
they could not spark

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I spark?
could you spark?
could he spark?
could we spark?
could you spark?
could they spark?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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