Use this grammar checker when a sentence sounds wrong, a comma feels uncertain, or two similar words are easy to mix up. Paste a sentence or short passage to find errors in spelling, punctuation, agreement, and usage. Get corrected wording, a plain explanation of each change, and examples that show how to avoid the same mistake next time.
Common Errors
Spot common grammar, punctuation, and word-choice errors in your sentence.
Use Common Errors
$49.99 / month
Includes every Agent on Ai-GEN. 15,000+ Agents for one monthly price, cancel anytime.
From the creator of GPTs with 8.5M+ chats · 4.2 stars · 37K+ reviews
Start Common Errors — $49.99 / month
Your account is created at checkout. After payment, this Agent opens when access is ready.
Already subscribed? Sign in · Account terms
Cancel future renewals from Account & Billing → Subscriptions.
What it writes
- Corrected sentence or passage
- Error-by-error explanations
- Examples of correct usage
How to use it
Paste the exact sentence, then say who will read it and what you mean. That context helps distinguish a genuine grammar error from an informal choice that suits your audience.
What you bring
- Sentence or passage to check
- Intended meaning and audience
- Paste the text into chat
A good fit for
- Checking a work email before sending it to your manager
- Sorting out comma use in a college essay paragraph
- Choosing between commonly confused words in a customer message
Ways to start
A few requests this Agent can handle.
Check this email for grammar and punctuation: “Hi Sam, me and Jordan has finished the report but we haven’t sent it yet.”
Did I use affect and effect correctly here? “The new schedule will effect how quickly customers receive their orders.”
Explain the errors in this sentence and correct it: “Neither of the answers are correct, and its missing a comma.”
Good to know
This workspace provides text assistance.
- Full developmental editing of long manuscripts
- Pronunciation assessment from spoken audio
- Checks only the language you paste into chat
- Cannot hear speech or inspect documents
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.
Report This Agent
Tell Ai-GEN about broken behavior, poor performance, misleading capabilities, or a safety concern.