1. Lesson Overview

In this lesson, you will learn:

• Form of the past continuous
• Affirmative, negative, and question structures
• Uses of the past continuous
• Interrupted actions (with past simple)
• Parallel past actions
• Background description
• Signal words
• Common errors

The past continuous describes actions that were in progress at a specific time in the past.

2. Form Structure

A. Affirmative

Subject + was/were + verb-ing

Examples:

Scientists were conducting experiments.
She was studying when the phone rang.
They were building a bridge.

B. Negative

Subject + was/were + not + verb-ing

She was not working yesterday.
They were not listening.

C. Questions

Was/Were + subject + verb-ing?

Was she studying?
Were they travelling?

3. Spelling Rules (Review)

Same -ing rules as present continuous:

write → writing
run → running
study → studying

4. Main Uses

A. Interrupted Action

Past continuous (long action) + past simple (short action)

She was studying when the power went out.
Scientists were analyzing the data when the system crashed.

The continuous action was in progress.
The simple past interrupted it.

B. Specific Time in the Past

At 8 PM, she was reading.
At this time last year, they were travelling in Japan.

C. Parallel Actions

Two actions happening simultaneously in the past.

She was writing while he was preparing slides.
The wind was blowing, and the rain was falling.

D. Background Description

Used to describe a scene or setting.

The sun was setting, and birds were flying across the sky.

5. Signal Words

when
while
as
at that moment
at 8 PM
at this time last year

6. Past Simple vs Past Continuous

Example:

She studied when I called. ❌
She was studying when I called. ✔

The phone call interrupted the study.

7. Meaning Contrast

I lived in Canada in 2015. (fact)
I was living in Canada in 2015. (temporary background)

Both can be correct depending on emphasis.

8. Common Mistakes Spotlight

⚠ Forgetting “was/were.”
Incorrect: She studying when I called.
Correct: She was studying when I called.

⚠ Using past simple for long action
Incorrect: She studied when I called.
Correct: She was studying when I called.

⚠ Using the wrong auxiliary
Incorrect: They was working.
Correct: They were working.

9. End of Lesson Check

You should now be able to:

• Form past continuous correctly
• Combine past continuous with past simple
• Use it for background description
• Identify parallel past actions
• Avoid incorrect auxiliary usage