What the grammar ladder actually tests
The bank behind the test covers the full CEFR grammar syllabus. Here is the climb, band by band — with one real example question from each:
How the adaptive grammar ladder works
Every round you answer moves the ladder: pass and it climbs a band, struggle and it steps down — with a strict-majority pass mark and loop protection, exactly like professional computer-adaptive exams. Because each question is tagged to a CEFR band, your final grammar level is not a percentage but a position on the international scale, comparable across every test on this site.
Two details make the result trustworthy. First, distractors are real learner errors — “more better”, “didn't went”, “I am agree” — so the test can distinguish knowing the rule from pattern-matching. Second, the same sitting also measures vocabulary, reading and writing, so grammar is reported in context: strong grammar with weak vocabulary is a different diagnosis, and a different study plan, than the reverse.
The mistakes that reveal a level
Experienced teachers can place a learner from a single paragraph, because grammatical errors are not random — they are stratified. “She go to work” is an A1 slip; “I have seen him yesterday” is the classic A2–B1 boundary error, made by learners who have acquired the present perfect but not its limits; “If I would have known” marks a B2 learner mid-assault on the third conditional; and a C1 candidate betrays themselves not by breaking rules but by avoiding structures — never risking an inversion, never fronting a clause — so their English is correct but strangely flat.
The test's question bank is built on exactly this stratification. Each distractor at each band is a real error harvested from real learner writing at that stage, which is why your final grammar band lines up so well with what a human examiner would conclude — in a fraction of the time.
From result to repair: fixing what the test finds
A grammar level is only useful if it changes what you study tomorrow. Your result links straight into our grammar classroom — 77 topics from A1 to B2, each with plain-English rules, the classic mistakes, and a quiz — so the structure you missed in the test is the lesson you open next. Vocabulary lists, graded stories and the levelled learning paths then supply the volume that turns a corrected rule into a habit.