Elihu quotes Job: "I am clean, without disobedience" (33:9). Did Job say that?

Elihu gives Job's words as "I am clean, without disobedience. I am innocent, neither is there iniquity in me" (33:9). In the WEB, Job's own speeches never say "I am clean", "without disobedience", "I am innocent" or "iniquity in me". Job had said, "I am blameless" (9:21), "you know that I am not wicked" (10:7), "I know that I am righteous" (13:18), "there is no violence in my hands, and my prayer is pure" (16:17), and "Until I die I will not put away my integrity from me" (27:5); in Hebrew 16:17's pure is 33:9's clean (tap clean). He had also said to God, "I know that you will not hold me innocent" (9:28), where innocent is another Hebrew word. Zophar had given Job's words as "My doctrine is pure. I am clean in your eyes" (11:4), where pure is that word again. Job had also spoken of "my disobedience": "Why do you not pardon my disobedience, and take away my iniquity?" (7:21), and "Make me know my disobedience and my sin" (13:23). The word behind 33:9's innocent comes nowhere else in the Hebrew Bible. Elihu gives the words without disobedience as Job's again later: "For Job has said" (34:5), "though I am without disobedience" (34:6). The two lines after 33:9 are much closer to Job's own words (see above). The book doesn't say whether Elihu's summary is fair, and these notes set the verses side by side without deciding.