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A good grammar checker does more than flag spelling mistakes. It catches the structural errors that spellcheck misses — the ones that make writing feel clunky or unprofessional even when every word is spelled correctly.
Clearwrite's grammar checker fixes:
Crucially, it does not rewrite sentences that are already correct. If your grammar is fine but your style is stilted, that's a job for the Rewrite tool — not grammar correction.
Understanding the patterns behind grammar errors helps you write better in the long run. Here are the mistakes that appear most often, even in polished professional writing:
❌ "The report was late, no one noticed." → ✅ "The report was late, but no one noticed."
When joining two independent clauses with a comma, you need a coordinating conjunction (and, but, or, so) — or use a semicolon.
❌ "The company lost it's market share." → ✅ "The company lost its market share."
"It's" always means "it is" or "it has." "Its" is the possessive. No exceptions.
❌ "Walking into the room, the lights were off." → ✅ "Walking into the room, she found the lights off."
The introductory phrase must logically attach to the subject of the main clause.
❌ "Mistakes were made by the team." → ✅ "The team made mistakes."
Passive voice hides the subject and weakens the sentence. Use it intentionally, not by default.
After correcting grammar, consider running your text through the Paraphrase tool to freshen up phrasing, or Text Shortener to trim excess words.
Yes. It corrects comma splices, missing apostrophes, incorrect semicolon use, and other punctuation errors alongside grammar fixes.
No. The grammar checker only fixes errors — it preserves your sentence structure, word choices, and voice. If a sentence is grammatically correct but stylistically unusual, it leaves it alone.
Especially well. The most common errors for non-native speakers — article misuse (a/the), subject-verb agreement, tense consistency — are exactly what this tool catches and corrects.
Grammar Checker fixes errors while preserving your text as-is. The Rewrite tool restructures sentences for clarity and flow, which changes more of the original wording. Use Grammar first, then Rewrite if you want fuller editing.
Free users can process up to 500 words per day. Pro users get unlimited corrections with a 3,000-word maximum per request.