Learning to Use the Past Simple Tense
The Past Simple is one of the most widely used tenses, and its Core Characteristic is to provide basic information about an action which was completed in the Past. A sentence in the Past Simple allows us to say when, where, why, or how you did something.
As you can see from our diagram, you should always remember that the Past Simple is used for
When we add information about time, your Reference Point (R) remains the same, but it is identified as a more specific point in time: I walked to school yesterday (Diagram 2):