Grammar Spy

Build your English grammar skills one short mission at a time. Grammar Spy turns grammar practice into a sentence detective game. In Error Smash, compare two sentences and identify the one with a grammar error. Then read the corrected sentence and a clear explanation. PRACTICE WITH PURPOSE • Practice present tense, past tense, and helping verbs. • Complete six-round missions without a timer. • Learn from corrections and explanations. • Revisit missed questions. • View your practice history and first-try accuracy. LEARN AT YOUR OWN PACE Practice offline, with no account required. Your progress is saved on your device. For English learners who want short, focused grammar practice.