Why complex sentences can hurt
Grammatical Range and Accuracy considers both range and accuracy. Complex structures can show ability, but repeated errors reduce clarity.
Grammar control
Many complex sentences do not mean grammar control is stable.
Many learners try to show complex structures by making sentences longer. If clauses, punctuation, agreement, and reference are unstable, the reader works harder.
Short answer: complexity must sit on accuracy. Stabilise frequent error patterns before adding more range.
Many attempts, clustered errors
Long sentences repeatedly create agreement, clause, or punctuation problems.
Simple sentences work, complex ones break
The idea is clear until sentences are combined.
No targeted checking
The learner rereads generally, but does not check recurring errors.
Real IELTS essay diagnosis
First of all, technology saves a lot of time in our daily life. For example, when we go to a new place, we do not need to ask people or remember the way, we just use the map App on the phone. Besides, we can pay by phone, buy things online and talk with friend…
Marked line: where the diagnosis located the main blocker in this learner-written essay.Coherence & cohesion 6
Main blocker
Body paragraph role is unclear
6–7conservative band range
268 words
Sample diagnostic, not an official IELTS score.
Build an error shortlist first
Instead of studying grammar generally, extract the top three recurring errors from the learner's own writing.
- Most frequent error type
- Whether it affects meaning
- Whether it can be caught during review
What to revise next
If the issue is accuracy, do a sentence-control repair pass: shorten the sentence, repair it, then combine only one structure at a time.
FAQ
What problem does Grammar accuracy solve?
Many learners try to show complex structures by making sentences longer. If clauses, punctuation, agreement, and reference are unstable, the reader works harder.
What evidence should I check first for Grammar accuracy?
Long sentences repeatedly create agreement, clause, or punctuation problems.
What should I redo after reading Grammar accuracy?
The idea is clear until sentences are combined. Instead of studying grammar generally, extract the top three recurring errors from the learner's own writing.
Is Grammar accuracy an AI essay checker?
Banfen Writing focuses on targeted score-gap repair. Use a real essay to pinpoint your conservative band range, core blockers, text evidence, and next revision steps.
Guides
Keep going with these guides.
These pages explain the Banfen Writing diagnostic and blocker-repair method, Task 1 overview, Task 2 development, and common score blockers.
Vocabulary control
IELTS Writing 的 Lexical Resource 看词义、搭配、语域和准确性。高级词数量只是其中一小部分；不会用的词比简单准确的词更危险。
Writing timing
IELTS Writing 只有 60 分钟。Task 1 和 Task 2 都要完成，时间失控会导致 underlength、展开不足和检查缺失。
Home
雅思写作批改看懂了，下一篇还是不会改？提交一篇真实 IELTS Task 2，先看保守参考分数区间、主卡分点和原文证据；由你自己重写一段、完成整篇第二稿，再对比修改前后变化。首次合格诊断免费；确认确有主卡分点后，可一次性选择 7 天 ¥29 或 31 天 ¥99 写作修复期，一次只进行 1 轮且不自动续费。
Writing grammar checker
IELTS Writing grammar checker 不应只改错。先判断错误是否影响句子控制、从句边界和意思清晰度。
Last-minute fix
IELTS Writing 考前冲刺不要重学所有技巧。更有效的是先诊断一篇作文里最拖分的标准，再做一个能立刻验证的修复步骤。
Model answer problem
IELTS writing model answer 搜索很容易变成背范文。本页说明如何把范文转成结构诊断和重写任务。
Start diagnosis
Make sentences stable before making them complex.
If complex sentences are not lifting the score, diagnose error patterns and sentence control first.
More than a simple comment list. Identify the priority blocker in your draft and guide you to revise with proven results.
References
- IELTS Writing band descriptorsOfficial
- British Council grammar for IELTSOfficial
- British Council Task 2 tipsOfficial