Foundations of the imperfect indicative (past time + imperfective aspect, three valid English translations), the augment in three flavors (syllabic ἐ-, temporal vowel-lengthening, and compound-verb augment between prefix and stem), the secondary personal endings (active and middle/passive), the Step 1/2/3 derivation of ἔλυον (active) and ἐλυόμην (M/P), contract verbs in the imperfect, the parsing workflow for any imperfect form, and translation practice covering progressive, inceptive, and conative aspect on the 12 Lesson 14 vocabulary verbs. Unlock each subtopic by scoring at least 90% on its mastery check.