I could detox you could detox he could detox we could detox you could detox they could detox
V-ing form
I could be detoxing you could be detoxing he could be detoxing we could be detoxing you could be detoxing they could be detoxing
Perfect
I could have detoxed you could have detoxed he could have detoxed we could have detoxed you could have detoxed they could have detoxed
V-ing perfect
I could have been detoxing you could have been detoxing he could have been detoxing we could have been detoxing you could have been detoxing they could have been detoxing
Negation
Simple form
I could not detox you could not detox he could not detox we could not detox you could not detox they could not detox
V-ing form
I could not be detoxing you could not be detoxing he could not be detoxing we could not be detoxing you could not be detoxing they could not be detoxing
Perfect
I could not have detoxed you could not have detoxed he could not have detoxed we could not have detoxed you could not have detoxed they could not have detoxed
V-ing perfect
I could not have been detoxing you could not have been detoxing he could not have been detoxing we could not have been detoxing you could not have been detoxing they could not have been detoxing
Interrogative form
Simple form
could I detox? could you detox? could he detox? could we detox? could you detox? could they detox?
V-ing form
could I be detoxing? could you be detoxing? could he be detoxing? could we be detoxing? could you be detoxing? could they be detoxing?
Perfect
could I have detoxed? could you have detoxed? could he have detoxed? could we have detoxed? could you have detoxed? could they have detoxed?
V-ing perfect
could I have been detoxing? could you have been detoxing? could he have been detoxing? could we have been detoxing? could you have been detoxing? could they have been detoxing?
Interro-negative form
Simple form
could I not detox? could you not detox? could he not detox? could we not detox? could you not detox? could they not detox?
V-ing form
could I not be detoxing? could you not be detoxing? could he not be detoxing? could we not be detoxing? could you not be detoxing? could they not be detoxing?
Perfect
could I not have detoxed? could you not have detoxed? could he not have detoxed? could we not have detoxed? could you not have detoxed? could they not have detoxed?
V-ing perfect
could I not have been detoxing? could you not have been detoxing? could he not have been detoxing? could we not have been detoxing? could you not have been detoxing? could they not have been detoxing?