I could redo you could redo she could redo we could redo you could redo they could redo
Forma com V-ing
I could be redoing you could be redoing she could be redoing we could be redoing you could be redoing they could be redoing
Perfeito
I could have redone you could have redone she could have redone we could have redone you could have redone they could have redone
Perfeito com V-ing
I could have been redoing you could have been redoing she could have been redoing we could have been redoing you could have been redoing they could have been redoing
Negação
Forma simple
I couldn't redo you couldn't redo she couldn't redo we couldn't redo you couldn't redo they couldn't redo
Forma com V-ing
I couldn't be redoing you couldn't be redoing she couldn't be redoing we couldn't be redoing you couldn't be redoing they couldn't be redoing
Perfeito
I couldn't have redone you couldn't have redone she couldn't have redone we couldn't have redone you couldn't have redone they couldn't have redone
Perfeito com V-ing
I couldn't have been redoing you couldn't have been redoing she couldn't have been redoing we couldn't have been redoing you couldn't have been redoing they couldn't have been redoing
Forma interrogativa
Forma simple
could I redo? could you redo? could she redo? could we redo? could you redo? could they redo?
Forma com V-ing
could I be redoing? could you be redoing? could she be redoing? could we be redoing? could you be redoing? could they be redoing?
Perfeito
could I have redone? could you have redone? could she have redone? could we have redone? could you have redone? could they have redone?
Perfeito com V-ing
could I have been redoing? could you have been redoing? could she have been redoing? could we have been redoing? could you have been redoing? could they have been redoing?
Forma interro-Negação
Forma simple
couldn't I redo? couldn't you redo? couldn't she redo? couldn't we redo? couldn't you redo? couldn't they redo?
Forma com V-ing
couldn't I be redoing? couldn't you be redoing? couldn't she be redoing? couldn't we be redoing? couldn't you be redoing? couldn't they be redoing?
Perfeito
couldn't I have redone? couldn't you have redone? couldn't she have redone? couldn't we have redone? couldn't you have redone? couldn't they have redone?
Perfeito com V-ing
couldn't I have been redoing? couldn't you have been redoing? couldn't she have been redoing? couldn't we have been redoing? couldn't you have been redoing? couldn't they have been redoing?