Commas Are often used to separate clauses. In English, a comma is often used to separate a dependent clause from the independent clause if the dependent clause comes first: After I fed the cat, I brushed my clothes. (Compare this with I brushed my clothes after I fed the cat.) https://hedgedoc.k8s.eonerc.rwth-aachen.de/hKGneKVkSBu5j4T07wtx7w/