The worksheet deals with irregular verbs. The students study all the verbs on the list and they have to take a test on them. You can choose to take away the translation. A teacher has to give a sheet of all the irregular verbs to study first. You can use the sheet to study all the tenses. When you start teaching present simple you can give them this sheet. Then you can go on to present continous, past simple, present perfect, past perfect, etc. You could also use it with advanced students to practice and refresh their memories of irregular verbs. I use these sheets to start off my classes. Why? Because I love to teach grammar. Students must know verbs to understand all the tenses as well as active and passive voice. If the students can´t differentiate between different types of verbs they will be lost. I hope this helps out some teachers.