What to confirm first
Prepare one full Task 2 essay and group grammar issues by type: tense, subject-verb agreement, verb form, articles, plurals, and sentence completeness. Choose one recurring pattern that the essay evidence clearly supports.
Examiners look for whether errors are frequent enough to affect clarity and whether complex structures are undermined by mistakes. Essays stuck at 6 usually have complex sentences, but the same error type repeats.
This is a grammar-control diagnostic, not an official score or a band-increase promise.
Treating “not advanced enough” as the main problem pushes learners to add more clauses and rare words, which adds errors. What actually holds the score down is a repeated error type, such as tense mixing, subject-verb agreement, or verb-form mistakes.
If the same error type recurs across the essay and the text evidence shows a stable pattern, it is worth making that control issue the revision target.
Prepare one full Task 2 essay and group grammar issues by type: tense, subject-verb agreement, verb form, articles, plurals, and sentence completeness. Choose one recurring pattern that the essay evidence clearly supports.
Do not rewrite the whole essay. Choose a set of sentences that represents the recurring pattern, rewrite them without changing meaning, then check whether the error moved from repeated to isolated.
A long sentence with three clauses but two errors reads worse than two correct short sentences. At Band 6, make every long sentence grammatically correct first, then add structural variety.
The diagnosis gives a conservative band range and the main blocker for learning purposes only. It is not an official IELTS score prediction and does not promise improvement.
These pages explain the Banfen Writing diagnostic and blocker-repair method, Task 1 overview, Task 2 development, and common score blockers.
Submit the prompt, essay, target band, and recent band to see a conservative range, main blocker, essay evidence, and next revision step, instead of treating AI feedback or a model essay as the answer.