This document provides instruction on using the phrase "used to" in English. It explains that "used to" is used to talk about past habits or actions that are no longer happening. Some examples are given, such as "Robert used to play football." It also explains when to use the simple past tense instead of "used to." Two exercises are included to practice using "used to" correctly. The first asks students to complete sentences with "used to." The second has students choose between "used to" and past simple. Finally, students are prompted to discuss how life was different before inventions like computers, cars, and televisions.