---
title: "Grammar editing AI Prompts (3 Free Templates) - AgentDock"
description: "3 free grammar editing prompts for ChatGPT, Claude, and Gemini. Professional templates with smart variables. Copy and use instantly, or run them in the AgentDock editor."
url: "https://agentdock.ai/prompt-library/t/grammar-editing"
docs_index: /llms.txt
---

# Grammar editing AI Prompts (3 Free Templates) - AgentDock

3 free grammar editing templates, including Run-on Sentence Fixer and Sentence Fragment Fixer.

- [Run-on Sentence Fixer](https://agentdock.ai/prompt-library/writing/run-on-sentence-fixer.md): Find every run-on sentence and comma splice, explain why each is an error, and rewrite it correctly with a period, semicolon, conjunction, or subordination.
- [Sentence Fragment Fixer](https://agentdock.ai/prompt-library/writing/sentence-fragment-fixer.md): Find every sentence fragment, explain the missing subject, verb, or clause, and rewrite it into a full sentence or join it to a neighboring one.
- [Dangling Modifier Fixer](https://agentdock.ai/prompt-library/writing/dangling-modifier-fixer.md): Fix every dangling and misplaced modifier in a passage, covering dangling participles, infinitives, misplaced limiting words, and squinting modifiers, without changing the meaning.

## Related tags

- [Writing](https://agentdock.ai/prompt-library/t/writing.md)
- [Sentence structure](https://agentdock.ai/prompt-library/t/sentence-structure.md)