Here's a list of some of the most important irregular verbs in the present, past and participle form. It's a great resource for anyone who is learning English. Laminate, cut along the dotted lines and punch a hole in the upper part. Finally, bind them together to make a booklet. Or you can use them individually, as bookmarks. Students can also fill in the blanks with other irregular verbs that they've learnt (obviously before laminating).