This document discusses the simple past and past perfect tenses in English. It defines the simple past tense as expressing actions that happened and ended in the past, often using time indicators like "yesterday" or "last week." Regular past tense verbs end in "-d" or "-ed" while irregular verbs can change form or stay the same. The past perfect tense narrates two past actions where the first is completed before the second. It uses the structure of "had + past participle." Examples are provided to illustrate the uses of each tense.