Coniugazione del verbo inglese COULD EXAMINE

I could examine
you could examine
she could examine
we could examine
you could examine
they could examine

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you could be examining
she could be examining
we could be examining
you could be examining
they could be examining

I could have examined
you could have examined
she could have examined
we could have examined
you could have examined
they could have examined

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you could have been examining
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I could not examine
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you could not have examined
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we could not have examined
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you could not have been examining
she could not have been examining
we could not have been examining
you could not have been examining
they could not have been examining

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could you examine?
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could they not be examining?

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