This document provides instruction on using the simple past form of the verb "to be" in English. It explains that the simple past of "am/is/are" is "was/were" and gives examples of how to use these forms affirmatively, negatively, and interrogatively. Examples are provided to demonstrate using was/were with time expressions in the past. An exercise is included for the learner to practice forming sentences in the simple past with was and were. Answers to the exercise are also provided.