Conjugação do verbo inglês COULD WHITEN

Verbo regular: whiten - whitened - whitened

Afirmação

Forma simple

I could whiten
you could whiten
he could whiten
we could whiten
you could whiten
they could whiten

Forma com V-ing

I could be whitening
you could be whitening
he could be whitening
we could be whitening
you could be whitening
they could be whitening

Perfeito

I could have whitened
you could have whitened
he could have whitened
we could have whitened
you could have whitened
they could have whitened

Perfeito com V-ing

I could have been whitening
you could have been whitening
he could have been whitening
we could have been whitening
you could have been whitening
they could have been whitening

Negação

Forma simple

I could not whiten
you could not whiten
he could not whiten
we could not whiten
you could not whiten
they could not whiten

Forma com V-ing

I could not be whitening
you could not be whitening
he could not be whitening
we could not be whitening
you could not be whitening
they could not be whitening

Perfeito

I could not have whitened
you could not have whitened
he could not have whitened
we could not have whitened
you could not have whitened
they could not have whitened

Perfeito com V-ing

I could not have been whitening
you could not have been whitening
he could not have been whitening
we could not have been whitening
you could not have been whitening
they could not have been whitening

Forma interrogativa

Forma simple

could I whiten?
could you whiten?
could he whiten?
could we whiten?
could you whiten?
could they whiten?

Forma com V-ing

could I be whitening?
could you be whitening?
could he be whitening?
could we be whitening?
could you be whitening?
could they be whitening?

Perfeito

could I have whitened?
could you have whitened?
could he have whitened?
could we have whitened?
could you have whitened?
could they have whitened?

Perfeito com V-ing

could I have been whitening?
could you have been whitening?
could he have been whitening?
could we have been whitening?
could you have been whitening?
could they have been whitening?

Forma interro-Negação

Forma simple

could I not whiten?
could you not whiten?
could he not whiten?
could we not whiten?
could you not whiten?
could they not whiten?

Forma com V-ing

could I not be whitening?
could you not be whitening?
could he not be whitening?
could we not be whitening?
could you not be whitening?
could they not be whitening?

Perfeito

could I not have whitened?
could you not have whitened?
could he not have whitened?
could we not have whitened?
could you not have whitened?
could they not have whitened?

Perfeito com V-ing

could I not have been whitening?
could you not have been whitening?
could he not have been whitening?
could we not have been whitening?
could you not have been whitening?
could they not have been whitening?

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