This document provides a lesson on using the simple past tense of the verb "to be" in English. It includes:
1) Grammar rules for forming the simple past of "to be" with subjects and complements, including affirmative, negative, and interrogative forms.
2) Examples showing the use of was/were in affirmative, negative, interrogative and WH- question sentences.
3) Information on forming the past tense of regular and irregular verbs, including using the auxiliary "did" in interrogative sentences.
4) Examples of simple past sentences with regular and irregular verbs in affirmative, negative, interrogative and WH- question forms.