What is the correct way to write sentence 6? Ginsburg worked as a clerk for a U.S District Judge for two years after school as a clerk. Ginsburg then worked as a clerk for a U.S. District Judge for two years. Next, Ginsburg worked as a clerk for a U.S. District Judge then for two years. Then, Ginsburg worked as a clerk, for a U.S. District judge, for two years.