Conjugação do verbo inglês COULD REFER

Verbo regular: refer - referred - referred

Afirmação

Forma simple

I could refer
you could refer
he could refer
we could refer
you could refer
they could refer

Forma com V-ing

I could be referring
you could be referring
he could be referring
we could be referring
you could be referring
they could be referring

Perfeito

I could have referred
you could have referred
he could have referred
we could have referred
you could have referred
they could have referred

Perfeito com V-ing

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

Negação

Forma simple

I could not refer
you could not refer
he could not refer
we could not refer
you could not refer
they could not refer

Forma com V-ing

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

Perfeito

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

Perfeito com V-ing

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

Forma interrogativa

Forma simple

could I refer?
could you refer?
could he refer?
could we refer?
could you refer?
could they refer?

Forma com V-ing

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

Perfeito

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

Perfeito com V-ing

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

Forma interro-Negação

Forma simple

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

Forma com V-ing

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

Perfeito

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

Perfeito com V-ing

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

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