I could elapse you could elapse he could elapse we could elapse you could elapse they could elapse
Forma con V-ing
I could be elapsing you could be elapsing he could be elapsing we could be elapsing you could be elapsing they could be elapsing
Perfecto
I could have elapsed you could have elapsed he could have elapsed we could have elapsed you could have elapsed they could have elapsed
Perfecto con V-ing
I could have been elapsing you could have been elapsing he could have been elapsing we could have been elapsing you could have been elapsing they could have been elapsing
Negación
Forma simple
I could not elapse you could not elapse he could not elapse we could not elapse you could not elapse they could not elapse
Forma con V-ing
I could not be elapsing you could not be elapsing he could not be elapsing we could not be elapsing you could not be elapsing they could not be elapsing
Perfecto
I could not have elapsed you could not have elapsed he could not have elapsed we could not have elapsed you could not have elapsed they could not have elapsed
Perfecto con V-ing
I could not have been elapsing you could not have been elapsing he could not have been elapsing we could not have been elapsing you could not have been elapsing they could not have been elapsing
Forma interrogativa
Forma simple
could I elapse? could you elapse? could he elapse? could we elapse? could you elapse? could they elapse?
Forma con V-ing
could I be elapsing? could you be elapsing? could he be elapsing? could we be elapsing? could you be elapsing? could they be elapsing?
Perfecto
could I have elapsed? could you have elapsed? could he have elapsed? could we have elapsed? could you have elapsed? could they have elapsed?
Perfecto con V-ing
could I have been elapsing? could you have been elapsing? could he have been elapsing? could we have been elapsing? could you have been elapsing? could they have been elapsing?
Forma interro-negativa
Forma simple
could I not elapse? could you not elapse? could he not elapse? could we not elapse? could you not elapse? could they not elapse?
Forma con V-ing
could I not be elapsing? could you not be elapsing? could he not be elapsing? could we not be elapsing? could you not be elapsing? could they not be elapsing?
Perfecto
could I not have elapsed? could you not have elapsed? could he not have elapsed? could we not have elapsed? could you not have elapsed? could they not have elapsed?
Perfecto con V-ing
could I not have been elapsing? could you not have been elapsing? could he not have been elapsing? could we not have been elapsing? could you not have been elapsing? could they not have been elapsing?