I could discolor you could discolor he could discolor we could discolor you could discolor they could discolor
Forma con V-ing
I could be discoloring you could be discoloring he could be discoloring we could be discoloring you could be discoloring they could be discoloring
Perfecto
I could have discolored you could have discolored he could have discolored we could have discolored you could have discolored they could have discolored
Perfecto con V-ing
I could have been discoloring you could have been discoloring he could have been discoloring we could have been discoloring you could have been discoloring they could have been discoloring
Negación
Forma simple
I couldn't discolor you couldn't discolor he couldn't discolor we couldn't discolor you couldn't discolor they couldn't discolor
Forma con V-ing
I couldn't be discoloring you couldn't be discoloring he couldn't be discoloring we couldn't be discoloring you couldn't be discoloring they couldn't be discoloring
Perfecto
I couldn't have discolored you couldn't have discolored he couldn't have discolored we couldn't have discolored you couldn't have discolored they couldn't have discolored
Perfecto con V-ing
I couldn't have been discoloring you couldn't have been discoloring he couldn't have been discoloring we couldn't have been discoloring you couldn't have been discoloring they couldn't have been discoloring
Forma interrogativa
Forma simple
could I discolor? could you discolor? could he discolor? could we discolor? could you discolor? could they discolor?
Forma con V-ing
could I be discoloring? could you be discoloring? could he be discoloring? could we be discoloring? could you be discoloring? could they be discoloring?
Perfecto
could I have discolored? could you have discolored? could he have discolored? could we have discolored? could you have discolored? could they have discolored?
Perfecto con V-ing
could I have been discoloring? could you have been discoloring? could he have been discoloring? could we have been discoloring? could you have been discoloring? could they have been discoloring?
Forma interro-negativa
Forma simple
couldn't I discolor? couldn't you discolor? couldn't he discolor? couldn't we discolor? couldn't you discolor? couldn't they discolor?
Forma con V-ing
couldn't I be discoloring? couldn't you be discoloring? couldn't he be discoloring? couldn't we be discoloring? couldn't you be discoloring? couldn't they be discoloring?
Perfecto
couldn't I have discolored? couldn't you have discolored? couldn't he have discolored? couldn't we have discolored? couldn't you have discolored? couldn't they have discolored?
Perfecto con V-ing
couldn't I have been discoloring? couldn't you have been discoloring? couldn't he have been discoloring? couldn't we have been discoloring? couldn't you have been discoloring? couldn't they have been discoloring?