Fill in the blanks with the helping verb and participle of each of these strong (irregular) verbs. Add hat or ist as the default form of the helping verb. For verbs with something unusual in the present tense (stem change or separable prefix), include that information in the special column, too. You may use the special keyboard to type Umlauts or the ß.
Click on the hyperlinked verb forms in the first column if you'd like to review those verbs in the present tense, too.