I could bib you could bib he could bib we could bib you could bib they could bib
Forma con V-ing
I could be bibing you could be bibing he could be bibing we could be bibing you could be bibing they could be bibing
Perfecto
I could have bibed you could have bibed he could have bibed we could have bibed you could have bibed they could have bibed
Perfecto con V-ing
I could have been bibing you could have been bibing he could have been bibing we could have been bibing you could have been bibing they could have been bibing
Negación
Forma simple
I could not bib you could not bib he could not bib we could not bib you could not bib they could not bib
Forma con V-ing
I could not be bibing you could not be bibing he could not be bibing we could not be bibing you could not be bibing they could not be bibing
Perfecto
I could not have bibed you could not have bibed he could not have bibed we could not have bibed you could not have bibed they could not have bibed
Perfecto con V-ing
I could not have been bibing you could not have been bibing he could not have been bibing we could not have been bibing you could not have been bibing they could not have been bibing
Forma interrogativa
Forma simple
could I bib? could you bib? could he bib? could we bib? could you bib? could they bib?
Forma con V-ing
could I be bibing? could you be bibing? could he be bibing? could we be bibing? could you be bibing? could they be bibing?
Perfecto
could I have bibed? could you have bibed? could he have bibed? could we have bibed? could you have bibed? could they have bibed?
Perfecto con V-ing
could I have been bibing? could you have been bibing? could he have been bibing? could we have been bibing? could you have been bibing? could they have been bibing?
Forma interro-negativa
Forma simple
could I not bib? could you not bib? could he not bib? could we not bib? could you not bib? could they not bib?
Forma con V-ing
could I not be bibing? could you not be bibing? could he not be bibing? could we not be bibing? could you not be bibing? could they not be bibing?
Perfecto
could I not have bibed? could you not have bibed? could he not have bibed? could we not have bibed? could you not have bibed? could they not have bibed?
Perfecto con V-ing
could I not have been bibing? could you not have been bibing? could he not have been bibing? could we not have been bibing? could you not have been bibing? could they not have been bibing?