Past simple verbs are used to refer to past completed actions or events. This can be the recent past or long ago. Sometimes the exact time or duration of the event is not important. We often use past simple verbs for general statements. If the exact time is important, past simple is usually followed by a time expression. There are less than 200 irregular verbs in English. You must study them by heart! There are countless regular past verbs in English. To form a past simple verb, we add “ed” to the infinitive verb with a few basic grammar rules. We use the verb “Do in the past (Did) + Infinitive” to ask questions in the past. Did is the auxiliary verb while the past simple verb refers to facts and actions.