The document provides a guide and exercises on using the past continuous tense in English. It defines the past continuous as referring to an ongoing process in the past without specifying if the action was completed or not. The guide includes 4 activities: 1) completing sentences in the past continuous, 2) writing sentences about what someone was doing at specific times yesterday, 3) changing verbs to the correct past tense, and 4) writing what person A was doing when event B occurred based on picture prompts.