Although you might even think of a Schankraum as a classroom for the purposes of a lesson ("We're having our class in the Schank"), I think if you'Response physically separate, it's now just a "lesson." Cumbria, UK British English Dec 30, 2020 #2 Use "to". While it is sometimes possible https://troygkjtz.blogsumer.com/32979116/immer-meine-trance-um-zu-arbeiten