This activity contains 35 irregular verb conjugations of the verbs venir, tener, oír, traer, caer, estar, saber, poner, hacer, ir, conducir, and decir. Partners quiz each other to see who can get all vocabulary correct and climb "las escaleras", or the stairs. One student has the answer key and the other has the infinitives with subject pronouns. After one makes it to the top of the stairs, students switch parts. The resource contains: Activity page answer key grid, 2/page, for partner 1