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 couldn't elapse you couldn't elapse he couldn't elapse we couldn't elapse you couldn't elapse they couldn't elapse
Forma con V-ing
I couldn't be elapsing you couldn't be elapsing he couldn't be elapsing we couldn't be elapsing you couldn't be elapsing they couldn't be elapsing
Perfecto
I couldn't have elapsed you couldn't have elapsed he couldn't have elapsed we couldn't have elapsed you couldn't have elapsed they couldn't have elapsed
Perfecto con V-ing
I couldn't have been elapsing you couldn't have been elapsing he couldn't have been elapsing we couldn't have been elapsing you couldn't have been elapsing they couldn't 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
couldn't I elapse? couldn't you elapse? couldn't he elapse? couldn't we elapse? couldn't you elapse? couldn't they elapse?
Forma con V-ing
couldn't I be elapsing? couldn't you be elapsing? couldn't he be elapsing? couldn't we be elapsing? couldn't you be elapsing? couldn't they be elapsing?
Perfecto
couldn't I have elapsed? couldn't you have elapsed? couldn't he have elapsed? couldn't we have elapsed? couldn't you have elapsed? couldn't they have elapsed?
Perfecto con V-ing
couldn't I have been elapsing? couldn't you have been elapsing? couldn't he have been elapsing? couldn't we have been elapsing? couldn't you have been elapsing? couldn't they have been elapsing?