English verb conjugation COULD SPECULATE

Regular verb: speculate - speculated - speculated

Affirmation

Simple form

I could speculate
you could speculate
he could speculate
we could speculate
you could speculate
they could speculate

V-ing form

I could be speculating
you could be speculating
he could be speculating
we could be speculating
you could be speculating
they could be speculating

Perfect

I could have speculated
you could have speculated
he could have speculated
we could have speculated
you could have speculated
they could have speculated

V-ing perfect

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

Negation

Simple form

I could not speculate
you could not speculate
he could not speculate
we could not speculate
you could not speculate
they could not speculate

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I speculate?
could you speculate?
could he speculate?
could we speculate?
could you speculate?
could they speculate?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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