The simple past tense is used to describe occurrences that happened in the past. It is formed using the past tense of verbs. There are three forms - positive, negative, and interrogative. The positive form uses "was/were" as the helping verb. The negative form uses "was/were not" or "did not." And the interrogative form uses "did" and ends in a question mark. An example is provided where the writer discusses being a student 5 years ago, having a close friend named Rani who lived in Bandung at that time.