Conjugação do verbo inglês COULD SEEM

Verbo regular: seem - seemed - seemed

Afirmação

Forma simple

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it could seem
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Forma com V-ing

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it could be seeming
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Perfeito

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it could have seemed
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Perfeito com V-ing

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it could have been seeming
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Forma simple

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it couldn't seem
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Forma com V-ing

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it couldn't be seeming
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Perfeito

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it couldn't have seemed
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Perfeito com V-ing

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it couldn't have been seeming
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Forma simple

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could it seem?
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Forma com V-ing

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could it be seeming?
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Perfeito

-
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could it have seemed?
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Perfeito com V-ing

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could it have been seeming?
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-
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Forma simple

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couldn't it seem?
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Forma com V-ing

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couldn't it be seeming?
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Perfeito

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couldn't it have seemed?
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-
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Perfeito com V-ing

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couldn't it have been seeming?
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