Build your vocabulary, master grammar, and sharpen your word choice
Explore curated words at your level and mark them as learned
Click "Show New Word" to start learning
Master different sentence types and improve clarity
Transform simple sentences into more sophisticated structures
Combine short sentences using conjunctions and transitions
Identify and correct frequent errors
Spot the grammatical error and think about the correction
Practice proper agreement in various contexts
Choose the correct verb form
Transform between voice types for better communication
Convert between active and passive voice
Review words at the optimal time to lock them into long-term memory
Test your knowledge of all your learned words
Pick a word from your Word Bank and write a sentence using it. Claude will grade your usage.
Three sentences use one of your Word Bank words — but one sentence uses it incorrectly. Can you spot the lie?
A random word from your Word Bank will be chosen. Claude AI will generate 3 sentences — 2 correct, 1 sneaky lie. Pick the incorrect one.
A sentence with a grammatical mistake is shown. Tap the exact word that contains the error.
Choose the correct verb form to complete the sentence.