Conjugación del verbo inglés COULD REFER
Verbo regular: refer - referred - referred
Afirmación
Forma simple
I could referyou could refer
he could refer
we could refer
you could refer
they could refer
Forma con V-ing
I could be referringyou could be referring
he could be referring
we could be referring
you could be referring
they could be referring
Perfecto
I could have referredyou could have referred
he could have referred
we could have referred
you could have referred
they could have referred
Perfecto con V-ing
I could have been referringyou could have been referring
he could have been referring
we could have been referring
you could have been referring
they could have been referring
Negación
Forma simple
I couldn't referyou couldn't refer
he couldn't refer
we couldn't refer
you couldn't refer
they couldn't refer
Forma con V-ing
I couldn't be referringyou couldn't be referring
he couldn't be referring
we couldn't be referring
you couldn't be referring
they couldn't be referring
Perfecto
I couldn't have referredyou couldn't have referred
he couldn't have referred
we couldn't have referred
you couldn't have referred
they couldn't have referred
Perfecto con V-ing
I couldn't have been referringyou couldn't have been referring
he couldn't have been referring
we couldn't have been referring
you couldn't have been referring
they couldn't 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 con 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?
Perfecto
could I have referred?could you have referred?
could he have referred?
could we have referred?
could you have referred?
could they have referred?
Perfecto con 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-negativa
Forma simple
couldn't I refer?couldn't you refer?
couldn't he refer?
couldn't we refer?
couldn't you refer?
couldn't they refer?
Forma con V-ing
couldn't I be referring?couldn't you be referring?
couldn't he be referring?
couldn't we be referring?
couldn't you be referring?
couldn't they be referring?
Perfecto
couldn't I have referred?couldn't you have referred?
couldn't he have referred?
couldn't we have referred?
couldn't you have referred?
couldn't they have referred?
Perfecto con V-ing
couldn't I have been referring?couldn't you have been referring?
couldn't he have been referring?
couldn't we have been referring?
couldn't you have been referring?
couldn't they have been referring?