Conjugaison du verbe anglais COULD ACCUMULATE

I could accumulate
you could accumulate
she could accumulate
we could accumulate
you could accumulate
they could accumulate

I could be accumulating
you could be accumulating
she could be accumulating
we could be accumulating
you could be accumulating
they could be accumulating

I could have accumulated
you could have accumulated
she could have accumulated
we could have accumulated
you could have accumulated
they could have accumulated

I could have been accumulating
you could have been accumulating
she could have been accumulating
we could have been accumulating
you could have been accumulating
they could have been accumulating

I could not accumulate
you could not accumulate
she could not accumulate
we could not accumulate
you could not accumulate
they could not accumulate

I could not be accumulating
you could not be accumulating
she could not be accumulating
we could not be accumulating
you could not be accumulating
they could not be accumulating

I could not have accumulated
you could not have accumulated
she could not have accumulated
we could not have accumulated
you could not have accumulated
they could not have accumulated

I could not have been accumulating
you could not have been accumulating
she could not have been accumulating
we could not have been accumulating
you could not have been accumulating
they could not have been accumulating

could I accumulate?
could you accumulate?
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could they accumulate?

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could I have accumulated?
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could I not accumulate?
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could they not be accumulating?

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could they not have accumulated?

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could you not have been accumulating?
could she not have been accumulating?
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could they not have been accumulating?