Past Continuous

1. FORM

1.1. Affirmative

1.1.1. You were staying when she called

1.2. Negative

1.2.1. You weren't staying when she called

1.3. Interrogative

1.3.1. Were you staying when she called?

2. USES

2.1. Interrupted Action in the Past

2.1.1. I was listening to my iPod, so I didn't hear the fire alarm.

2.2. Specific Time as an Interruption

2.2.1. Last night at 6 PM, I was eating dinner.

2.3. Parallel Actions

2.3.1. I was studying while he was making dinner.