V E R B S.

-Past simple:

Use the Simple Past to express the idea that an action started and finished at a specific time in the past. Sometimes, the speaker may not actually mention the specific time, but they do have one specific time in mind..

Affirmative:

The past tense of regular verbs is formed by adding-d or-ed to the base form of the verb.

Example: I worked in a shop last year.


-Past continuos:

Use the Past Continuous to indicate that a longer action in the past was interrupted. The interruption is usually a shorter action in the Simple Past.

Example: -When the phone rang, she was writing a letter.
-What were you doing when the earthquake started?