One of the most difficult aspects of learning English is mastering the irregular verbs. One way to commit the irregular verbs to memory is through chants. At http://www.manythings.org you can find a podcast with the irregular verbs recited in chant form accompanied by music. I have used this in a classroom setting as a daily activity with great results. Students can practice these chants at home. They not only help with the memorization of irregular verb tenses, these chants also give students pronunciation practice. Practice makes perfect!