MyTeacher AI says 1M wrong sentences = 750 core structures. That ratio tells me most errors are not creative — they are

MyTeacher AI says 1M wrong sentences = 750 core structures. That ratio tells me most errors are not creative — they are the same 750 patterns over and over. Band 8 writing requires eliminating those patterns entirely before moving to complex structures. 10-minute drills work, but only if the learner already knows what they are drilling.