Advanced Grammar Checker
Rule-based checks for common Class 9–12 English mistakes. Not a full AI proofreader — great for practice and spotting patterns.
Practice drills
Score: 0 / 0
What this checker covers
- Subject–verb agreement (go/goes, is/are, has/have)
- Articles (a / an) before vowel vs consonant sounds
- Commonly confused words (their/there/they’re, your/you’re, its/it’s, affect/effect…)
- Double negatives, comparative/superlative (more taller → taller)
- Preposition hints (depend on, interested in, good at…)
- Tense / auxiliary hints (did + base form, don’t vs doesn’t)
- Capitalization of “I”, repeated words, spacing around punctuation