I could sob you could sob he could sob we could sob you could sob they could sob
Forma con V-ing
I could be sobbing you could be sobbing he could be sobbing we could be sobbing you could be sobbing they could be sobbing
Perfecto
I could have sobbed you could have sobbed he could have sobbed we could have sobbed you could have sobbed they could have sobbed
Perfecto con V-ing
I could have been sobbing you could have been sobbing he could have been sobbing we could have been sobbing you could have been sobbing they could have been sobbing
Negación
Forma simple
I could not sob you could not sob he could not sob we could not sob you could not sob they could not sob
Forma con V-ing
I could not be sobbing you could not be sobbing he could not be sobbing we could not be sobbing you could not be sobbing they could not be sobbing
Perfecto
I could not have sobbed you could not have sobbed he could not have sobbed we could not have sobbed you could not have sobbed they could not have sobbed
Perfecto con V-ing
I could not have been sobbing you could not have been sobbing he could not have been sobbing we could not have been sobbing you could not have been sobbing they could not have been sobbing
Forma interrogativa
Forma simple
could I sob? could you sob? could he sob? could we sob? could you sob? could they sob?
Forma con V-ing
could I be sobbing? could you be sobbing? could he be sobbing? could we be sobbing? could you be sobbing? could they be sobbing?
Perfecto
could I have sobbed? could you have sobbed? could he have sobbed? could we have sobbed? could you have sobbed? could they have sobbed?
Perfecto con V-ing
could I have been sobbing? could you have been sobbing? could he have been sobbing? could we have been sobbing? could you have been sobbing? could they have been sobbing?
Forma interro-negativa
Forma simple
could I not sob? could you not sob? could he not sob? could we not sob? could you not sob? could they not sob?
Forma con V-ing
could I not be sobbing? could you not be sobbing? could he not be sobbing? could we not be sobbing? could you not be sobbing? could they not be sobbing?
Perfecto
could I not have sobbed? could you not have sobbed? could he not have sobbed? could we not have sobbed? could you not have sobbed? could they not have sobbed?
Perfecto con V-ing
could I not have been sobbing? could you not have been sobbing? could he not have been sobbing? could we not have been sobbing? could you not have been sobbing? could they not have been sobbing?