I could ko you could ko she could ko we could ko you could ko they could ko
Forma com V-ing
I could be koing you could be koing she could be koing we could be koing you could be koing they could be koing
Perfeito
I could have koed you could have koed she could have koed we could have koed you could have koed they could have koed
Perfeito com V-ing
I could have been koing you could have been koing she could have been koing we could have been koing you could have been koing they could have been koing
Negação
Forma simple
I could not ko you could not ko she could not ko we could not ko you could not ko they could not ko
Forma com V-ing
I could not be koing you could not be koing she could not be koing we could not be koing you could not be koing they could not be koing
Perfeito
I could not have koed you could not have koed she could not have koed we could not have koed you could not have koed they could not have koed
Perfeito com V-ing
I could not have been koing you could not have been koing she could not have been koing we could not have been koing you could not have been koing they could not have been koing
Forma interrogativa
Forma simple
could I ko? could you ko? could she ko? could we ko? could you ko? could they ko?
Forma com V-ing
could I be koing? could you be koing? could she be koing? could we be koing? could you be koing? could they be koing?
Perfeito
could I have koed? could you have koed? could she have koed? could we have koed? could you have koed? could they have koed?
Perfeito com V-ing
could I have been koing? could you have been koing? could she have been koing? could we have been koing? could you have been koing? could they have been koing?
Forma interro-Negação
Forma simple
could I not ko? could you not ko? could she not ko? could we not ko? could you not ko? could they not ko?
Forma com V-ing
could I not be koing? could you not be koing? could she not be koing? could we not be koing? could you not be koing? could they not be koing?
Perfeito
could I not have koed? could you not have koed? could she not have koed? could we not have koed? could you not have koed? could they not have koed?
Perfeito com V-ing
could I not have been koing? could you not have been koing? could she not have been koing? could we not have been koing? could you not have been koing? could they not have been koing?