Conjugação do verbo inglês COULD KEEN

Verbo regular: keen - keened - keened

Afirmação

Forma simple

I could keen
you could keen
he could keen
we could keen
you could keen
they could keen

Forma com V-ing

I could be keening
you could be keening
he could be keening
we could be keening
you could be keening
they could be keening

Perfeito

I could have keened
you could have keened
he could have keened
we could have keened
you could have keened
they could have keened

Perfeito com V-ing

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

Negação

Forma simple

I could not keen
you could not keen
he could not keen
we could not keen
you could not keen
they could not keen

Forma com V-ing

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

Perfeito

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

Perfeito com V-ing

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

Forma interrogativa

Forma simple

could I keen?
could you keen?
could he keen?
could we keen?
could you keen?
could they keen?

Forma com V-ing

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

Perfeito

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

Perfeito com V-ing

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

Forma interro-Negação

Forma simple

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

Forma com V-ing

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

Perfeito

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

Perfeito com V-ing

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

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