Conjugaison du verbe anglais COULD ILLUSTRATE

I could illustrate
you could illustrate
she could illustrate
we could illustrate
you could illustrate
they could illustrate

I could be illustrating
you could be illustrating
she could be illustrating
we could be illustrating
you could be illustrating
they could be illustrating

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you could have illustrated
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we could have illustrated
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they could have illustrated

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you could have been illustrating
she could have been illustrating
we could have been illustrating
you could have been illustrating
they could have been illustrating

I couldn't illustrate
you couldn't illustrate
she couldn't illustrate
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you couldn't illustrate
they couldn't illustrate

I couldn't be illustrating
you couldn't be illustrating
she couldn't be illustrating
we couldn't be illustrating
you couldn't be illustrating
they couldn't be illustrating

I couldn't have illustrated
you couldn't have illustrated
she couldn't have illustrated
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I couldn't have been illustrating
you couldn't have been illustrating
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they couldn't have been illustrating

could I illustrate?
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