- an action that was in progress at a time in the past. The action started before that time and continued after that time: I was watching TV at six.
- two actions that were in progress at the same time in the past: I was talking to Luke while Kate was making dinner.
I was talking to Luke while Kate was making dinner.
While Kate was making dinner, I was talking to Luke.
I / She / He / It was playing.
You / We / They were playing.
I / She / He / It wasn´t playing.
You / We / They weren´t playing.
Was I / she / he / it playing?
Were you / we / they playing?