I can redo you can redo she can redo we can redo you can redo they can redo
V-ing form
I can be redoing you can be redoing she can be redoing we can be redoing you can be redoing they can be redoing
Perfect
I can have redone you can have redone she can have redone we can have redone you can have redone they can have redone
V-ing perfect
I can have been redoing you can have been redoing she can have been redoing we can have been redoing you can have been redoing they can have been redoing
Negation
Simple form
I cannot redo you cannot redo she cannot redo we cannot redo you cannot redo they cannot redo
V-ing form
I cannot be redoing you cannot be redoing she cannot be redoing we cannot be redoing you cannot be redoing they cannot be redoing
Perfect
I cannot have redone you cannot have redone she cannot have redone we cannot have redone you cannot have redone they cannot have redone
V-ing perfect
I cannot have been redoing you cannot have been redoing she cannot have been redoing we cannot have been redoing you cannot have been redoing they cannot have been redoing
Interrogative form
Simple form
can I redo? can you redo? can she redo? can we redo? can you redo? can they redo?
V-ing form
can I be redoing? can you be redoing? can she be redoing? can we be redoing? can you be redoing? can they be redoing?
Perfect
can I have redone? can you have redone? can she have redone? can we have redone? can you have redone? can they have redone?
V-ing perfect
can I have been redoing? can you have been redoing? can she have been redoing? can we have been redoing? can you have been redoing? can they have been redoing?
Interro-negative form
Simple form
can I not redo? can you not redo? can she not redo? can we not redo? can you not redo? can they not redo?
V-ing form
can I not be redoing? can you not be redoing? can she not be redoing? can we not be redoing? can you not be redoing? can they not be redoing?
Perfect
can I not have redone? can you not have redone? can she not have redone? can we not have redone? can you not have redone? can they not have redone?
V-ing perfect
can I not have been redoing? can you not have been redoing? can she not have been redoing? can we not have been redoing? can you not have been redoing? can they not have been redoing?