Past Continuous is used to denote an action going on at some time in the past.
The light went out while I was watching the TV.
We were listening to the FM all night.
It was getting colder.
When I saw him, he was playing piano.
Past Continuous is used to denote an action going on at some time in the past.
The light went out while I was watching the TV.
We were listening to the FM all night.
It was getting colder.
When I saw him, he was playing piano.