This is a fun and simple game. I use stacking towers, which is the Dollar General version of Jenga, and number each block individually. I group students in fours and one student is responsible for reading the questions. If a student removes a block from the tower and answers the corresponding question form the sheet correctly they receive a point. If they are incorrect they do not receive any points. The game ends when the tower falls. For this particular sheet students are just supposed to conjugate the verbs according the subject listed.
For a variation of this game you can have students write down sentences using the verbs from their blocks.