This resource contains a handful of sentences written by past A-level students taking Spanish. Each sentence contains a grammatical mistake that is common amongst many A-level Spanish students. Students need to identify the mistake in every sentence, correct the mistake and if possible, explain why the sentence was wrong. In case of doubt, corrections and explanations are provided on page 3. Students can work in groups of 2 and compete against other groups to see which group can identify more mistakes. By doing this activity students will work on their metalinguistic awareness and learn and avoid common grammatical mistakes made by A-level Spanish students.