The Simple Past in Bosnian grammar, also known as the Preterite, is a verb tense used to express finished actions and events that happened in the past. It can indicate an action that took place at a specific time in the past or an event that occurred over a period of time prior to the present. In Bosnian, the Simple Past is formed by adding the appropriate ending to the verb stem based on the subject pronoun and gender of the person or thing performing the action.