Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could depurity you could depurity he could depurity we could depurity you could depurity they could depurity
V-ing form
I could be depuritying you could be depuritying he could be depuritying we could be depuritying you could be depuritying they could be depuritying
Perfect
I could have depuritied you could have depuritied he could have depuritied we could have depuritied you could have depuritied they could have depuritied
V-ing perfect
I could have been depuritying you could have been depuritying he could have been depuritying we could have been depuritying you could have been depuritying they could have been depuritying
Negation
Simple form
I could not depurity you could not depurity he could not depurity we could not depurity you could not depurity they could not depurity
V-ing form
I could not be depuritying you could not be depuritying he could not be depuritying we could not be depuritying you could not be depuritying they could not be depuritying
Perfect
I could not have depuritied you could not have depuritied he could not have depuritied we could not have depuritied you could not have depuritied they could not have depuritied
V-ing perfect
I could not have been depuritying you could not have been depuritying he could not have been depuritying we could not have been depuritying you could not have been depuritying they could not have been depuritying
Interrogative form
Simple form
could I depurity? could you depurity? could he depurity? could we depurity? could you depurity? could they depurity?
V-ing form
could I be depuritying? could you be depuritying? could he be depuritying? could we be depuritying? could you be depuritying? could they be depuritying?
Perfect
could I have depuritied? could you have depuritied? could he have depuritied? could we have depuritied? could you have depuritied? could they have depuritied?
V-ing perfect
could I have been depuritying? could you have been depuritying? could he have been depuritying? could we have been depuritying? could you have been depuritying? could they have been depuritying?
Interro-negative form
Simple form
could I not depurity? could you not depurity? could he not depurity? could we not depurity? could you not depurity? could they not depurity?
V-ing form
could I not be depuritying? could you not be depuritying? could he not be depuritying? could we not be depuritying? could you not be depuritying? could they not be depuritying?
Perfect
could I not have depuritied? could you not have depuritied? could he not have depuritied? could we not have depuritied? could you not have depuritied? could they not have depuritied?
V-ing perfect
could I not have been depuritying? could you not have been depuritying? could he not have been depuritying? could we not have been depuritying? could you not have been depuritying? could they not have been depuritying?