I could discolor you could discolor he could discolor we could discolor you could discolor they could discolor
Forma com 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
Perfeito
I could have discolored you could have discolored he could have discolored we could have discolored you could have discolored they could have discolored
Perfeito com 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
Negação
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 com 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
Perfeito
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
Perfeito com 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 com 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?
Perfeito
could I have discolored? could you have discolored? could he have discolored? could we have discolored? could you have discolored? could they have discolored?
Perfeito com 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-Negação
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 com 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?
Perfeito
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?
Perfeito com 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?