---
title: "Grammar AI Prompts (33 Free Templates) - AgentDock"
description: "33 free grammar 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"
docs_index: /llms.txt
---

# Grammar AI Prompts (33 Free Templates) - AgentDock

33 free grammar templates, including Gerund Identifier and Grammar Checker.

- [Gerund Identifier](https://agentdock.ai/prompt-library/writing/gerund-identifier.md): Identifies every gerund and present participle in a pasted passage, labels each -ing word's grammatical role, and separates the two forms with a clear test.
- [Grammar Checker](https://agentdock.ai/prompt-library/writing/grammar-checker.md): Find and fix grammar, spelling, punctuation, and style errors with detailed explanations and suggestions for clearer writing
- [Disinterested vs Uninterested Explainer](https://agentdock.ai/prompt-library/writing/disinterested-vs-uninterested-explainer.md): Explain whether disinterested or uninterested fits a sentence, check existing text for the swap, and clarify the impartial-versus-bored test behind this often-confused pair.
- [Compound Subject and Predicate Identifier](https://agentdock.ai/prompt-library/writing/compound-subject-predicate-identifier.md): Tag every compound subject and compound predicate in a passage, quote the words forming each one, and apply the clause and agreement tests.
- [Appositive Identifier](https://agentdock.ai/prompt-library/writing/appositive-identifier.md): Identify every appositive in a passage and determine whether it needs commas using the essential versus nonessential removal test.
- [Elicit vs Illicit Explainer](https://agentdock.ai/prompt-library/writing/elicit-vs-illicit-explainer.md): Explain whether elicit or illicit fits a sentence, check existing text, and clarify why illicit cannot take a direct object like elicit can.
- [Dependent Clause Identifier](https://agentdock.ai/prompt-library/writing/dependent-clause-identifier.md): Explain and label every dependent clause in a passage, naming each clause's type as adverb, adjective, or noun clause and the independent clause it modifies.
- [Sentence Rewriter](https://agentdock.ai/prompt-library/writing/sentence-rewriter.md): Transform any sentence with multiple rewritten alternatives tailored to your specific tone, audience, and purpose while preserving the original meaning
- [Participle Identifier](https://agentdock.ai/prompt-library/writing/participle-identifier.md): Identify every participle in a passage, labeling present and past forms as adjectives or verb-tense builders, and distinguish them from gerunds and dangling modifiers.
- [Parts of Speech Identifier](https://agentdock.ai/prompt-library/writing/parts-of-speech-identifier.md): Label the part of speech of every word in a passage, covering all nine word classes, and explain why words like run shift class.
- [Moral vs Morale Explainer](https://agentdock.ai/prompt-library/writing/moral-vs-morale-explainer.md): Determine whether moral or morale fits a sentence by testing if it concerns ethics or team spirit, including the plural morals exception.
- [Everyday vs Every Day Explainer](https://agentdock.ai/prompt-library/writing/everyday-vs-every-day-explainer.md): Explain whether everyday or every day fits a sentence, check existing text, and clarify the each-day substitution test behind this common mix-up.
- [Prepositional Phrase Identifier](https://agentdock.ai/prompt-library/writing/prepositional-phrase-identifier.md): Identify every prepositional phrase in a passage, classify each as adjective or adverb, and flag subject-verb agreement traps like 'one of the boys'.
- [Active Voice Converter](https://agentdock.ai/prompt-library/writing/active-voice-converter.md): Transform passive voice sentences into clear, direct active voice while preserving meaning and identifying when passive voice is intentionally appropriate
- [SAT Reading and Writing Practice Generator](https://agentdock.ai/prompt-library/education/test-prep/sat-reading-writing-practice-generator.md): Generate digital SAT Reading and Writing practice passages across all four real domains with a domain tagged answer key.
- [Precede vs Proceed Explainer](https://agentdock.ai/prompt-library/writing/precede-vs-proceed-explainer.md): Determine whether precede or proceed fits a sentence by testing order versus forward motion, including the preposition proceed almost always needs.
- [Language Learning Helper](https://agentdock.ai/prompt-library/education/study/language-learning-helper.md): Get personalized language practice, explanations, and study strategies for any language
- [German Vocabulary Flashcard Generator](https://agentdock.ai/prompt-library/education/study/german-vocabulary-flashcard-generator.md): Build German vocabulary flashcards with gender-marked articles, spelled-out irregular plurals, and an optional case-declension drill across all four cases
- [Clause vs Phrase Explainer](https://agentdock.ai/prompt-library/writing/clause-vs-phrase-explainer.md): Explain whether each group of words in a passage is a clause or a phrase using the subject-and-verb test, and name the specific type.
- [Homophones Checker](https://agentdock.ai/prompt-library/education/reading/homophones-checker.md): Catch misused homophones like their, there, and they're in your writing, or look up any word's homophones with meanings, example sentences, and a memory trick
- [Direct and Indirect Object Identifier](https://agentdock.ai/prompt-library/writing/direct-indirect-object-identifier.md): Explain and label the direct and indirect objects in a passage, using the verb-plus-what test to separate them from subject complements and prepositional phrases.
- [Gerund vs Infinitive Explainer](https://agentdock.ai/prompt-library/writing/gerund-vs-infinitive-explainer.md): Checks governing verbs in a passage for correct gerund or infinitive use and sorts them into gerund-only, infinitive-only, either-works, and meaning-changing groups.
- [Count and Noncount Nouns Explainer](https://agentdock.ai/prompt-library/writing/count-noncount-nouns-explainer.md): Find every count and noncount noun error in a passage, a wrong plural, article, or quantifier, and explain why that noun is noncount in English.
- [GED RLA Practice Generator](https://agentdock.ai/prompt-library/education/test-prep/ged-rla-practice-generator.md): Generate GED RLA practice questions on reading comprehension, grammar conventions, and vocabulary in context with a full answer key
- [Sentence Types Identifier](https://agentdock.ai/prompt-library/education/reading/sentence-types-identifier.md): Analyze any sentence or passage to identify its type, simple, compound, complex, or compound-complex by structure, and by purpose
- [Passed vs Past Explainer](https://agentdock.ai/prompt-library/writing/passed-vs-past-explainer.md): Determine whether passed or past fits a sentence by testing if the word functions as a verb, including the preposition sense meaning beyond.
- [Language Class Vocab Flashcards From Notes](https://agentdock.ai/prompt-library/education/study/language-class-vocab-flashcards-from-notes.md): Build language vocabulary flashcards with part of speech, a full example sentence, and conjugation or declension patterns instead of a bare translation
- [Breath vs Breathe Explainer](https://agentdock.ai/prompt-library/writing/breath-vs-breathe-explainer.md): Explain whether breath or breathe fits a sentence using a thing-versus-action test, then flag the common dropped-final-E error in short commands like just breathe.
- [Period English Comparison Generator](https://agentdock.ai/prompt-library/education/reading/period-english-comparison-generator.md): Analyze a period English passage against modern English across vocabulary, grammar, word order, and spelling to reveal how the language shifted
- [Praxis Core Writing Practice Generator](https://agentdock.ai/prompt-library/education/test-prep/praxis-core-writing-practice-generator.md): Generate original Praxis Core Writing practice covering grammar questions and both timed essays with a full scoring rubric.
- [Spanish Vocabulary Flashcard Generator](https://agentdock.ai/prompt-library/education/study/spanish-vocabulary-flashcard-generator.md): Build Spanish vocabulary flashcards with gender-marked articles, false friend warnings, and an optional verb conjugation drill matched to your CEFR level
- [ACT English Practice Generator](https://agentdock.ai/prompt-library/education/test-prep/act-english-practice-generator.md): Generate ACT English practice questions across all three reporting categories with underlined-passage format and a built-in pacing drill
- [SAT Grammar Practice Generator](https://agentdock.ai/prompt-library/education/test-prep/sat-grammar-practice-generator.md): Generate SAT Standard English Conventions practice questions covering punctuation, agreement, verb tense, and modifier rules with an answer key.

## Related tags

- [Writing](https://agentdock.ai/prompt-library/t/writing.md)
- [Education](https://agentdock.ai/prompt-library/t/education.md)
- [Commonly confused words](https://agentdock.ai/prompt-library/t/commonly-confused-words.md)
- [Sentence structure](https://agentdock.ai/prompt-library/t/sentence-structure.md)
- [Word choice](https://agentdock.ai/prompt-library/t/word-choice.md)
- [Vocabulary](https://agentdock.ai/prompt-library/t/vocabulary.md)
- [Test prep](https://agentdock.ai/prompt-library/t/test-prep.md)
- [Language learning](https://agentdock.ai/prompt-library/t/language-learning.md)
- [Editing](https://agentdock.ai/prompt-library/t/editing.md)
- [Homophones](https://agentdock.ai/prompt-library/t/homophones.md)
- [Flashcards](https://agentdock.ai/prompt-library/t/flashcards.md)
- [Sentence analysis](https://agentdock.ai/prompt-library/t/sentence-analysis.md)