The document discusses the past continuous tense in English. It explains that the past continuous is used to describe actions that were ongoing or in progress during a period of time in the past. It provides examples of how the past continuous is used to talk about actions happening at a specific time, over a duration, or in the background while another past action occurred. The document contrasts the past continuous with the simple past and discusses their different meanings. It concludes with a memory exercise asking readers to recall details from an image they viewed for one minute.