Grammar Checker
Advanced AI detection for grammar, spelling, punctuation, style, and clarity — with one-click corrections.
Grammar & Writing Tips
Subject–Verb Agreement
Make sure subjects and verbs match in number. “The team plays” (singular) vs “The teams play” (plural).
Comma Splices
Don’t join two independent clauses with only a comma. Use a semicolon, conjunction, or split into two sentences.
Dangling Modifiers
“Walking down the street, the trees were beautiful” — who was walking? Modifiers must clearly refer to a subject.
Consistent Tense
Stick to one tense throughout unless there’s a clear narrative reason to switch. Mixing tenses confuses readers.
Their / There / They’re
“Their” = possessive. “There” = place. “They’re” = they are. Among the most common mix-ups in English.
Fewer vs Less
Use “fewer” for countable nouns (fewer apples), “less” for uncountable quantities (less water, less time).
Passive Voice
Prefer active voice for clarity. “The report was written by John” → “John wrote the report.”
Apostrophe Use
Apostrophes show possession (John’s car) or contractions (can’t = cannot). Never use them for plurals: “apple’s” ✗.