What advanced resources or diagnostic tests are currently available online to pinpoint subtle syntax errors for someone mastering professional English grammar?
Download run
Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
What advanced resources or diagnostic tests are currently available online to pinpoint subtle syntax errors for someone mastering professional English grammar?
3 real searches · 1 real-search pass
advanced English grammar syntax diagnostic tests online C1 C2 writing feedback grammar checker official resources 2026Google ↗
OBSERVEDInstruction
official grammar checking tools syntax style diagnostics Grammarly ProWritingAid LanguageTool Microsoft Editor featuresGoogle ↗
OBSERVEDComparison
Cambridge English Write & Improve grammar feedback C1 C2 online writing assessmentGoogle ↗
OBSERVEDInstruction
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
ChatGPT real searches (3)
Classes come from the query-classifier (a local Laya model). 3 of 3 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.
Searches and sources
ChatGPT3 real searches · gpt-6
advanced English grammar syntax diagnostic tests online C1 C2 writing feedback grammar checker official resources 2026 Google ↗
official grammar checking tools syntax style diagnostics Grammarly ProWritingAid LanguageTool Microsoft Editor features Google ↗
Cambridge English Write & Improve grammar feedback C1 C2 online writing assessment Google ↗
- MyGrammarLab - Adult English Language Learning · pearson.com
- MyGrammarLab - Adult English Language Learning · pearson.com
- C1 grammar · learnenglish.britishcouncil.org
- Preparing for C1 Advanced · cambridgeenglish.org
- Free AI Grammar Checker · languagetool.org
- Premium · languagetool.org
- Product Features · prowritingaid.com
- What is ProWritingAid and how does it work? · help.prowritingaid.com
- Microsoft Editor checks grammar and more in documents, mail, and the web · support.microsoft.com
- Check grammar, spelling, and more in Word · support.microsoft.com
- Write & Improve with Cambridge · writeandimprove.com
- How does Write & Improve work? · help.writeandimprove.com
- InterActive English · interactiveenglish.app
- English Corpora: most widely used online corpora. Billions of words of data: free online access · english-corpora.org
- Corpus Resources – The Corpus-Aided Platform for Language Teachers (CAP) · corpus.eduhk.hk
- The Survey of English Usage – Resources · ucl.ac.uk
Queries
3 queries · click a column to sort
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
advanced English grammar syntax diagnostic tests online C1 C2 writing feedback grammar checker official resources 2026 OBSERVED | Google ↗ AI Mode ↗ | — | Instruction | — | — | 1x of 1 | |
official grammar checking tools syntax style diagnostics Grammarly ProWritingAid LanguageTool Microsoft Editor features OBSERVED | Google ↗ AI Mode ↗ | — | Comparison | — | — | 1x of 1 | |
Cambridge English Write & Improve grammar feedback C1 C2 online writing assessment OBSERVED | Google ↗ AI Mode ↗ | — | Instruction | — | — | 1x of 1 |