The document discusses different verb tenses in Swedish, including the present perfect, which uses "have/has" plus the past participle to talk about things that have happened, and the past perfect, which uses "had" plus the past participle to talk about things that had happened before something else in the past. It provides examples of how to form and use these tenses with common verbs like "go", "run", "know", and "forget". It also notes common spoken contractions of "have", "has", and "had".