Menyatakan perbuatan yang sedang berlangsung pada waktu tertentu di masa lampau.
- Tanpa atau dengan menggunakan time signal.
- Viska was walking down the street when it began to rain.
- Siska and I were standing under a tree when it began to rain.
- When I arrived, Tommy was talking on the phone.
- At nine o’clock last night, he was studying.
- Last month at this time, they were attending school.