I could redefine you could redefine he could redefine we could redefine you could redefine they could redefine
V-ing form
I could be redefining you could be redefining he could be redefining we could be redefining you could be redefining they could be redefining
Perfect
I could have redefined you could have redefined he could have redefined we could have redefined you could have redefined they could have redefined
V-ing perfect
I could have been redefining you could have been redefining he could have been redefining we could have been redefining you could have been redefining they could have been redefining
Negation
Simple form
I could not redefine you could not redefine he could not redefine we could not redefine you could not redefine they could not redefine
V-ing form
I could not be redefining you could not be redefining he could not be redefining we could not be redefining you could not be redefining they could not be redefining
Perfect
I could not have redefined you could not have redefined he could not have redefined we could not have redefined you could not have redefined they could not have redefined
V-ing perfect
I could not have been redefining you could not have been redefining he could not have been redefining we could not have been redefining you could not have been redefining they could not have been redefining
Interrogative form
Simple form
could I redefine? could you redefine? could he redefine? could we redefine? could you redefine? could they redefine?
V-ing form
could I be redefining? could you be redefining? could he be redefining? could we be redefining? could you be redefining? could they be redefining?
Perfect
could I have redefined? could you have redefined? could he have redefined? could we have redefined? could you have redefined? could they have redefined?
V-ing perfect
could I have been redefining? could you have been redefining? could he have been redefining? could we have been redefining? could you have been redefining? could they have been redefining?
Interro-negative form
Simple form
could I not redefine? could you not redefine? could he not redefine? could we not redefine? could you not redefine? could they not redefine?
V-ing form
could I not be redefining? could you not be redefining? could he not be redefining? could we not be redefining? could you not be redefining? could they not be redefining?
Perfect
could I not have redefined? could you not have redefined? could he not have redefined? could we not have redefined? could you not have redefined? could they not have redefined?
V-ing perfect
could I not have been redefining? could you not have been redefining? could he not have been redefining? could we not have been redefining? could you not have been redefining? could they not have been redefining?