Conjugaison du verbe anglais COULD FLIGHT-TEST

I could flight-test
you could flight-test
he could flight-test
we could flight-test
you could flight-test
they could flight-test

I could be flight-testing
you could be flight-testing
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you could be flight-testing
they could be flight-testing

I could have flight-tested
you could have flight-tested
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they could have flight-tested

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you could have been flight-testing
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you could have been flight-testing
they could have been flight-testing

I could not flight-test
you could not flight-test
he could not flight-test
we could not flight-test
you could not flight-test
they could not flight-test

I could not be flight-testing
you could not be flight-testing
he could not be flight-testing
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you could not be flight-testing
they could not be flight-testing

I could not have flight-tested
you could not have flight-tested
he could not have flight-tested
we could not have flight-tested
you could not have flight-tested
they could not have flight-tested

I could not have been flight-testing
you could not have been flight-testing
he could not have been flight-testing
we could not have been flight-testing
you could not have been flight-testing
they could not have been flight-testing

could I flight-test?
could you flight-test?
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could I be flight-testing?
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could you have been flight-testing?
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could I not flight-test?
could you not flight-test?
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could you not flight-test?
could they not flight-test?

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could you not be flight-testing?
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could I not have been flight-testing?
could you not have been flight-testing?
could he not have been flight-testing?
could we not have been flight-testing?
could you not have been flight-testing?
could they not have been flight-testing?