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Grammar Rules

Explain grammar rules and fix sentence-level errors in English.

Use Grammar Rules

$49.99 / month

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Start Grammar Rules — $49.99 / month

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Use this assistant when an English sentence sounds wrong and you want to know why. Paste a sentence to identify agreement, tense, punctuation, or word-choice problems; ask why a rule applies; or compare two possible phrasings. Leave with a corrected sentence, a plain-language rule explanation, and examples you can use in similar writing.

What it writes

  • Corrected sentence with changes explained
  • Plain-language grammar rule and examples
  • Comparison of two grammar choices

How to use it

Include the full sentence, what you mean, and where it will appear. If you are choosing between forms, paste both versions so the explanation can address your exact usage.

What you bring

  • The sentence or passage in question
  • Your intended meaning
  • The English variety you use
  • Paste the wording you want checked

A good fit for

  • Checking subject-verb agreement in a report before sending it
  • Understanding comma placement in a sentence with an introductory phrase
  • Choosing between past perfect and simple past in a work email

Ways to start

A few requests this Agent can handle.

Why is “The list of items are on my desk” incorrect? Explain the agreement rule and give two similar examples.

Should I write “I had finished the report before she arrived” or “I finished the report before she arrived”? Explain the difference.

Check this sentence for grammar and punctuation: “After reviewing the contract we sent it to the client, who replied yesterday.” Explain each change.

Good to know

This workspace provides text assistance.

  • Editing an entire book or long manuscript
  • A substitute for a professional copyeditor
  • Checks only wording you paste into the chat
  • Does not verify style-guide or publication requirements

Before you subscribe

What am I buying?

One monthly subscription that opens this Agent and every other Agent on Ai-GEN. Cancel from Account & Billing.

What happens after payment?

Checkout creates or uses your Ai-GEN account. When payment and entitlement are confirmed, the purchased Agent opens. Choose a starter task, add your inputs, and send your first request.

Can I cancel?

Yes. Manage cancellation under Account & Billing → Subscriptions. Review the status and cancellation details shown there before confirming.

Can I use the response in my work?

Use it as a draft to review and adapt. Verify calculations, facts, rights, and suitability before relying on it. Do not provide information you do not have permission to share.

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