Select your level (beginner, medium or advanced), look up irregular verb forms and perform tests based on your response time.
You can search by any verb form and look up verbs by hints that help you remember. Based on your learning preferences you can choose from different types of tests and adjust their length and the time to answer each verb. At any time you can check your general knowledge of irregular verbs, which ones are harder for you to remember and those you fail more often.