I could disco you could disco he could disco we could disco you could disco they could disco
Forma com V-ing
I could be discoing you could be discoing he could be discoing we could be discoing you could be discoing they could be discoing
Perfeito
I could have discoed you could have discoed he could have discoed we could have discoed you could have discoed they could have discoed
Perfeito com V-ing
I could have been discoing you could have been discoing he could have been discoing we could have been discoing you could have been discoing they could have been discoing
Negação
Forma simple
I couldn't disco you couldn't disco he couldn't disco we couldn't disco you couldn't disco they couldn't disco
Forma com V-ing
I couldn't be discoing you couldn't be discoing he couldn't be discoing we couldn't be discoing you couldn't be discoing they couldn't be discoing
Perfeito
I couldn't have discoed you couldn't have discoed he couldn't have discoed we couldn't have discoed you couldn't have discoed they couldn't have discoed
Perfeito com V-ing
I couldn't have been discoing you couldn't have been discoing he couldn't have been discoing we couldn't have been discoing you couldn't have been discoing they couldn't have been discoing
Forma interrogativa
Forma simple
could I disco? could you disco? could he disco? could we disco? could you disco? could they disco?
Forma com V-ing
could I be discoing? could you be discoing? could he be discoing? could we be discoing? could you be discoing? could they be discoing?
Perfeito
could I have discoed? could you have discoed? could he have discoed? could we have discoed? could you have discoed? could they have discoed?
Perfeito com V-ing
could I have been discoing? could you have been discoing? could he have been discoing? could we have been discoing? could you have been discoing? could they have been discoing?
Forma interro-Negação
Forma simple
couldn't I disco? couldn't you disco? couldn't he disco? couldn't we disco? couldn't you disco? couldn't they disco?
Forma com V-ing
couldn't I be discoing? couldn't you be discoing? couldn't he be discoing? couldn't we be discoing? couldn't you be discoing? couldn't they be discoing?
Perfeito
couldn't I have discoed? couldn't you have discoed? couldn't he have discoed? couldn't we have discoed? couldn't you have discoed? couldn't they have discoed?
Perfeito com V-ing
couldn't I have been discoing? couldn't you have been discoing? couldn't he have been discoing? couldn't we have been discoing? couldn't you have been discoing? couldn't they have been discoing?