Simple past tense is used to talk about completed actions in the past.Regular verbs in the simple past tense end with -ed, while irregular verbs have different forms.Examples of regular verbs in the simple past tense include "played," "walked," and "talked."To form questions and negatives in the simple past tense, use the auxiliary verbs "did" and "didn't."It is important to understand and use the simple past tense correctly in order to communicate effectively in English.