Check individual sentences for subject-verb agreement, dangling modifiers, parallelism issues, and clarity problems. Powered by LanguageTool.
Sentence-level errors are the hardest to spot because they're often grammatically valid but logically wrong. A dangling modifier ('Walking down the street, the trees were beautiful') passes spell-check but fails clarity. Subject-verb agreement violations ('The data is/are wrong') are debate-worthy. A sentence checker flags these for you.
Paste a sentence (or short paragraph) and click Check. LanguageTool runs all sentence-level rules and shows highlighted issues with explanations.
Use it when revising opening sentences of articles (where clarity matters most), thesis statements in academic writing, taglines and CTAs in marketing copy, and any sentence where you sense something is off but can't pin down what.
Read each flagged sentence aloud — if it sounds awkward, the algorithm probably caught a real issue. For dangling modifiers, the fix is usually to rephrase so the subject is clear at the start.
A descriptive phrase whose subject is unclear or wrong: 'Walking down the street, the trees swayed' — were the trees walking?
Modern usage accepts both. Be consistent within a document.
Yes — LanguageTool flags sentences that exceed reasonable length or contain comma splices.
Explore more grammar & proofreading on the tool hub — or jump straight to the Spell Checker, Grammar Checker, Punctuation Checker.