To become a Swiss citizen, you must be able to speak German. For listening and speaking you need level B1, for reading and writing you need level A2. That's why you have to take a German test, in the Canton of Zurich it's called KDE (Cantonal German Test for Naturalization).

Anyone wishing to become a naturalist in the Canton of Zurich must also have sufficient knowledge of the geography, history, politics and society of Switzerland, the Canton of Zurich and Zurich’s municipal system. This knowledge is tested in a test, the basic knowledge test in the respective community.
The congregation will tell you when and where to take the test. Many municipalities have a contract with a school, some municipalities take the test themselves.

Depending on your previous knowledge, we prepare for both tests in groups or individual lessons.