This document discusses the use of "used to" and "would" to talk about past habits and repeated actions in the past. It provides examples of how to use "used to" to describe things that happened regularly in the past but no longer occur. It also contrasts "used to" with talking about definite past times or events. Additionally, it explains that "would" can also be used to talk about repeated past actions, but not states or conditions. Finally, it discusses using "be used to" to mean being familiar with something.