I could shudder you could shudder he could shudder we could shudder you could shudder they could shudder
Forma con V-ing
I could be shuddering you could be shuddering he could be shuddering we could be shuddering you could be shuddering they could be shuddering
Perfecto
I could have shuddered you could have shuddered he could have shuddered we could have shuddered you could have shuddered they could have shuddered
Perfecto con V-ing
I could have been shuddering you could have been shuddering he could have been shuddering we could have been shuddering you could have been shuddering they could have been shuddering
Negación
Forma simple
I could not shudder you could not shudder he could not shudder we could not shudder you could not shudder they could not shudder
Forma con V-ing
I could not be shuddering you could not be shuddering he could not be shuddering we could not be shuddering you could not be shuddering they could not be shuddering
Perfecto
I could not have shuddered you could not have shuddered he could not have shuddered we could not have shuddered you could not have shuddered they could not have shuddered
Perfecto con V-ing
I could not have been shuddering you could not have been shuddering he could not have been shuddering we could not have been shuddering you could not have been shuddering they could not have been shuddering
Forma interrogativa
Forma simple
could I shudder? could you shudder? could he shudder? could we shudder? could you shudder? could they shudder?
Forma con V-ing
could I be shuddering? could you be shuddering? could he be shuddering? could we be shuddering? could you be shuddering? could they be shuddering?
Perfecto
could I have shuddered? could you have shuddered? could he have shuddered? could we have shuddered? could you have shuddered? could they have shuddered?
Perfecto con V-ing
could I have been shuddering? could you have been shuddering? could he have been shuddering? could we have been shuddering? could you have been shuddering? could they have been shuddering?
Forma interro-negativa
Forma simple
could I not shudder? could you not shudder? could he not shudder? could we not shudder? could you not shudder? could they not shudder?
Forma con V-ing
could I not be shuddering? could you not be shuddering? could he not be shuddering? could we not be shuddering? could you not be shuddering? could they not be shuddering?
Perfecto
could I not have shuddered? could you not have shuddered? could he not have shuddered? could we not have shuddered? could you not have shuddered? could they not have shuddered?
Perfecto con V-ing
could I not have been shuddering? could you not have been shuddering? could he not have been shuddering? could we not have been shuddering? could you not have been shuddering? could they not have been shuddering?