The aorist and future passive — the θη marker. Spot θη between the stem and the endings, drill the aorist and future passive forms (including the second aorist passive in -η-), parse passive vs middle, translate passives (agent = ὑπό + genitive), watch for deponent -θη- forms, and read the NT 'divine passive.' Unlock each subtopic by scoring at least 90% on its mastery check.