I could color you could color he could color we could color you could color they could color
Forma com V-ing
I could be coloring you could be coloring he could be coloring we could be coloring you could be coloring they could be coloring
Perfeito
I could have colored you could have colored he could have colored we could have colored you could have colored they could have colored
Perfeito com V-ing
I could have been coloring you could have been coloring he could have been coloring we could have been coloring you could have been coloring they could have been coloring
Negação
Forma simple
I couldn't color you couldn't color he couldn't color we couldn't color you couldn't color they couldn't color
Forma com V-ing
I couldn't be coloring you couldn't be coloring he couldn't be coloring we couldn't be coloring you couldn't be coloring they couldn't be coloring
Perfeito
I couldn't have colored you couldn't have colored he couldn't have colored we couldn't have colored you couldn't have colored they couldn't have colored
Perfeito com V-ing
I couldn't have been coloring you couldn't have been coloring he couldn't have been coloring we couldn't have been coloring you couldn't have been coloring they couldn't have been coloring
Forma interrogativa
Forma simple
could I color? could you color? could he color? could we color? could you color? could they color?
Forma com V-ing
could I be coloring? could you be coloring? could he be coloring? could we be coloring? could you be coloring? could they be coloring?
Perfeito
could I have colored? could you have colored? could he have colored? could we have colored? could you have colored? could they have colored?
Perfeito com V-ing
could I have been coloring? could you have been coloring? could he have been coloring? could we have been coloring? could you have been coloring? could they have been coloring?
Forma interro-Negação
Forma simple
couldn't I color? couldn't you color? couldn't he color? couldn't we color? couldn't you color? couldn't they color?
Forma com V-ing
couldn't I be coloring? couldn't you be coloring? couldn't he be coloring? couldn't we be coloring? couldn't you be coloring? couldn't they be coloring?
Perfeito
couldn't I have colored? couldn't you have colored? couldn't he have colored? couldn't we have colored? couldn't you have colored? couldn't they have colored?
Perfeito com V-ing
couldn't I have been coloring? couldn't you have been coloring? couldn't he have been coloring? couldn't we have been coloring? couldn't you have been coloring? couldn't they have been coloring?