Past Continuous:•I was watching TV when she called.•When the phone rang, she was writing a letter.•While we were having the picnic, it started to rain.•What were you doing when the earthquake started?•I was listening to my iPod, so I didn't hear the fire alarm.Present Continuous:•You are learning English now.•You are not swimming now.•Are you sleeping?•I am sitting.•I am not standing.