Here are examples of sentences in the past continuous tense:
1. Positive Sentences
I was reading a book when the phone rang.
She was cooking dinner at 7 PM yesterday.
They were playing football while it started raining.
We were watching TV when the lights went out.
He was working on his project all night.
2. Negative Sentences
I was not (wasn’t) listening to music when you called.
She was not (wasn’t) studying during the break.
They were not (weren’t) paying attention to the teacher.
We were not (weren’t) sleeping when the alarm went off.
He was not (wasn’t) driving carefully.
3. Questions
Were you watching the game last night?
Was she talking to her friend at that time?
Were they playing outside when the storm began?
Was he working late yesterday?
Were we waiting at the right place?
4. Uses
Actions happening at a specific time in the past: I was having lunch at 1 PM.
Parallel actions: She was reading while he was writing.
Interrupted actions: We were walking to the park when it started raining.
Setting the scene in a story: The birds were chirping, and the sun was shining.