I could brood you could brood he could brood we could brood you could brood they could brood
Forma con V-ing
I could be brooding you could be brooding he could be brooding we could be brooding you could be brooding they could be brooding
Perfecto
I could have brooded you could have brooded he could have brooded we could have brooded you could have brooded they could have brooded
Perfecto con V-ing
I could have been brooding you could have been brooding he could have been brooding we could have been brooding you could have been brooding they could have been brooding
Negación
Forma simple
I could not brood you could not brood he could not brood we could not brood you could not brood they could not brood
Forma con V-ing
I could not be brooding you could not be brooding he could not be brooding we could not be brooding you could not be brooding they could not be brooding
Perfecto
I could not have brooded you could not have brooded he could not have brooded we could not have brooded you could not have brooded they could not have brooded
Perfecto con V-ing
I could not have been brooding you could not have been brooding he could not have been brooding we could not have been brooding you could not have been brooding they could not have been brooding
Forma interrogativa
Forma simple
could I brood? could you brood? could he brood? could we brood? could you brood? could they brood?
Forma con V-ing
could I be brooding? could you be brooding? could he be brooding? could we be brooding? could you be brooding? could they be brooding?
Perfecto
could I have brooded? could you have brooded? could he have brooded? could we have brooded? could you have brooded? could they have brooded?
Perfecto con V-ing
could I have been brooding? could you have been brooding? could he have been brooding? could we have been brooding? could you have been brooding? could they have been brooding?
Forma interro-negativa
Forma simple
could I not brood? could you not brood? could he not brood? could we not brood? could you not brood? could they not brood?
Forma con V-ing
could I not be brooding? could you not be brooding? could he not be brooding? could we not be brooding? could you not be brooding? could they not be brooding?
Perfecto
could I not have brooded? could you not have brooded? could he not have brooded? could we not have brooded? could you not have brooded? could they not have brooded?
Perfecto con V-ing
could I not have been brooding? could you not have been brooding? could he not have been brooding? could we not have been brooding? could you not have been brooding? could they not have been brooding?