I could speak you could speak she could speak we could speak you could speak they could speak
Forma con V-ing
I could be speaking you could be speaking she could be speaking we could be speaking you could be speaking they could be speaking
Perfecto
I could have spoken, spoke you could have spoken, spoke she could have spoken, spoke we could have spoken, spoke you could have spoken, spoke they could have spoken, spoke
Perfecto con V-ing
I could have been speaking you could have been speaking she could have been speaking we could have been speaking you could have been speaking they could have been speaking
Negación
Forma simple
I could not speak you could not speak she could not speak we could not speak you could not speak they could not speak
Forma con V-ing
I could not be speaking you could not be speaking she could not be speaking we could not be speaking you could not be speaking they could not be speaking
Perfecto
I could not have spoken, spoke you could not have spoken, spoke she could not have spoken, spoke we could not have spoken, spoke you could not have spoken, spoke they could not have spoken, spoke
Perfecto con V-ing
I could not have been speaking you could not have been speaking she could not have been speaking we could not have been speaking you could not have been speaking they could not have been speaking
Forma interrogativa
Forma simple
could I speak? could you speak? could she speak? could we speak? could you speak? could they speak?
Forma con V-ing
could I be speaking? could you be speaking? could she be speaking? could we be speaking? could you be speaking? could they be speaking?
Perfecto
could I have spoken, spoke? could you have spoken, spoke? could she have spoken, spoke? could we have spoken, spoke? could you have spoken, spoke? could they have spoken, spoke?
Perfecto con V-ing
could I have been speaking? could you have been speaking? could she have been speaking? could we have been speaking? could you have been speaking? could they have been speaking?
Forma interro-negativa
Forma simple
could I not speak? could you not speak? could she not speak? could we not speak? could you not speak? could they not speak?
Forma con V-ing
could I not be speaking? could you not be speaking? could she not be speaking? could we not be speaking? could you not be speaking? could they not be speaking?
Perfecto
could I not have spoken, spoke? could you not have spoken, spoke? could she not have spoken, spoke? could we not have spoken, spoke? could you not have spoken, spoke? could they not have spoken, spoke?
Perfecto con V-ing
could I not have been speaking? could you not have been speaking? could she not have been speaking? could we not have been speaking? could you not have been speaking? could they not have been speaking?