MBBS from Philippines is valid in major countries like USA, Canada, etc Universities generally use the language of the country in which they are located unless there are special circumstances. When I did graduate work in Germany, courses were taught in German. When I did graduate work in Spain, courses were taught in Spanish. In both instances, the respective schools’ post-graduate programs were taught in the language of the country. Nevertheless, some universities teach at least some courses in another language. Jacobs University Bremen, for example, is an international university that teaches most of its courses in English. Note, however, that this institution was founded as an international university not a German one. Its students come from 100 different countries, and 75% of the student body consists of foreign students. It is not typical. There are also American Universities Abroad. Their policies on the language of instruction may vary, but at least some of them teach in the language of the country in which they are located rather than English. So, if you are planning to study in Germany, learn German. Even if you go to a university in which instruction is in English, you will find German helpful.