The method
Four moves, every time.
Every entry has the same shape. Once you learn it, your brain starts filling in the pattern for words that aren’t even in here yet.
i. Wrong first
We lead with the mistake as it actually occurs — a real sentence someone might write. Seeing the error in context activates the part of your memory that stores sentences, not rules.
ii. Then the correct
The same sentence, fixed. The contrast is the lesson.
iii. A plain explanation
Why it’s wrong, in one paragraph. No Latin, no “transitive,” no hedging about exceptions. If an exception matters, it gets its own entry.
iv. One rule to keep
A single line you can carry with you. The kind of sentence you could tell a friend. That’s the point.