This document outlines four English verb tenses used to describe past events: the past simple, past continuous, past perfect, and past perfect continuous. It provides the construction, use, and examples for each tense. The past simple is used for specific, finished past actions. The past continuous describes ongoing actions in the past. The past perfect places an action before another past action. And the past perfect continuous shows something started in the past and continued up until another past time.

1. PAST TENSES
- Past simple
- Past continuous
- Past perfect
- Past perfect continuous

2. Past simple
- Construction:
- Use: When is a specific moment and the action is finished.
- Example:
I was a teacher.
Positive: verb + -ed
Negative: didn´t + verb

3. Past continuous
- Construction:
- Use:
- Example:
Monday evening I was studying.
Action in progres in the past.
Positive: + verb + -ing
Negative: + not + verb + -ing
Was
Were
Was
Were

4. Past perfect
- Construction:
- Use: When the action occurred after another action in the past.
- Example:
I did not have any money because I had lost my wallet
Positive: had + p.p.
Negative: had + not + p.p.

5. Past perfect continuous
- Construction:
- Use:
- Example:
She had been working at that company for three years when it went out of
business.
Positive: had + been + verb + -ing
Negative: had + not + been + verb + -ing
Show that something started in the past and continued
up until another time in the past