Verb conjugation of "schummeln" in German

Study material is not easy to find. Unfortunately I have not received any such material yet. To give your students brochures and leaflets is in my opinion not the ideal. It cannot be compared with online studies.
I have even met someone who invited me to come and visit. It was an older couple who were renting apartments for language students. Well, actually there are agencies that offer the same as this couple, but I'm open.
My name is Julio and I live in Santiago, which is in Chile. I speak a little German, but I want to improve. Where are you from? Where do you live? What is your favorite music? Auf wiedersehen!