I could detoxify you could detoxify he could detoxify we could detoxify you could detoxify they could detoxify
V-ing form
I could be detoxifying you could be detoxifying he could be detoxifying we could be detoxifying you could be detoxifying they could be detoxifying
Perfect
I could have detoxified you could have detoxified he could have detoxified we could have detoxified you could have detoxified they could have detoxified
V-ing perfect
I could have been detoxifying you could have been detoxifying he could have been detoxifying we could have been detoxifying you could have been detoxifying they could have been detoxifying
Negation
Simple form
I could not detoxify you could not detoxify he could not detoxify we could not detoxify you could not detoxify they could not detoxify
V-ing form
I could not be detoxifying you could not be detoxifying he could not be detoxifying we could not be detoxifying you could not be detoxifying they could not be detoxifying
Perfect
I could not have detoxified you could not have detoxified he could not have detoxified we could not have detoxified you could not have detoxified they could not have detoxified
V-ing perfect
I could not have been detoxifying you could not have been detoxifying he could not have been detoxifying we could not have been detoxifying you could not have been detoxifying they could not have been detoxifying
Interrogative form
Simple form
could I detoxify? could you detoxify? could he detoxify? could we detoxify? could you detoxify? could they detoxify?
V-ing form
could I be detoxifying? could you be detoxifying? could he be detoxifying? could we be detoxifying? could you be detoxifying? could they be detoxifying?
Perfect
could I have detoxified? could you have detoxified? could he have detoxified? could we have detoxified? could you have detoxified? could they have detoxified?
V-ing perfect
could I have been detoxifying? could you have been detoxifying? could he have been detoxifying? could we have been detoxifying? could you have been detoxifying? could they have been detoxifying?
Interro-negative form
Simple form
could I not detoxify? could you not detoxify? could he not detoxify? could we not detoxify? could you not detoxify? could they not detoxify?
V-ing form
could I not be detoxifying? could you not be detoxifying? could he not be detoxifying? could we not be detoxifying? could you not be detoxifying? could they not be detoxifying?
Perfect
could I not have detoxified? could you not have detoxified? could he not have detoxified? could we not have detoxified? could you not have detoxified? could they not have detoxified?
V-ing perfect
could I not have been detoxifying? could you not have been detoxifying? could he not have been detoxifying? could we not have been detoxifying? could you not have been detoxifying? could they not have been detoxifying?