I could resign you could resign he could resign we could resign you could resign they could resign
Forma con V-ing
I could be resigning you could be resigning he could be resigning we could be resigning you could be resigning they could be resigning
Perfecto
I could have resigned you could have resigned he could have resigned we could have resigned you could have resigned they could have resigned
Perfecto con V-ing
I could have been resigning you could have been resigning he could have been resigning we could have been resigning you could have been resigning they could have been resigning
Negación
Forma simple
I could not resign you could not resign he could not resign we could not resign you could not resign they could not resign
Forma con V-ing
I could not be resigning you could not be resigning he could not be resigning we could not be resigning you could not be resigning they could not be resigning
Perfecto
I could not have resigned you could not have resigned he could not have resigned we could not have resigned you could not have resigned they could not have resigned
Perfecto con V-ing
I could not have been resigning you could not have been resigning he could not have been resigning we could not have been resigning you could not have been resigning they could not have been resigning
Forma interrogativa
Forma simple
could I resign? could you resign? could he resign? could we resign? could you resign? could they resign?
Forma con V-ing
could I be resigning? could you be resigning? could he be resigning? could we be resigning? could you be resigning? could they be resigning?
Perfecto
could I have resigned? could you have resigned? could he have resigned? could we have resigned? could you have resigned? could they have resigned?
Perfecto con V-ing
could I have been resigning? could you have been resigning? could he have been resigning? could we have been resigning? could you have been resigning? could they have been resigning?
Forma interro-negativa
Forma simple
could I not resign? could you not resign? could he not resign? could we not resign? could you not resign? could they not resign?
Forma con V-ing
could I not be resigning? could you not be resigning? could he not be resigning? could we not be resigning? could you not be resigning? could they not be resigning?
Perfecto
could I not have resigned? could you not have resigned? could he not have resigned? could we not have resigned? could you not have resigned? could they not have resigned?
Perfecto con V-ing
could I not have been resigning? could you not have been resigning? could he not have been resigning? could we not have been resigning? could you not have been resigning? could they not have been resigning?