Use this puzzle to help your students practice the affirmative and negative words (alguien, nadie, etc). The first page is the one I use with my honors classes. The second page is a modified version for struggling students or classes, and the third page is the answer key. Print and laminate the first or second page depending on what class you are doing. Then, print the third page, laminate, cut up the squares, and put into envelopes. I usually put the students into groups of two to complete the puzzle.