when_while_ved_ving

When Jacky studied English last night, he listened to music.

While Hank was doing his homework, I entered the room. / When I entered the room, Hank was doing his homework.

When I was a kid I loved to read stories.

When Peter met his old friends, he cried.

When Kelly went swimming with her best friend, it was raining. / While it was raining, Kelly went swimming with her best friend.

When Zack left the house, it was raining. / While it was raining, Zack left the house.

While Peter was doing his homework, his cat was sleeping.

While Betty was watching TV, Judy was cooking lunch.

When Mary saw Ben talking to himself, she was playing at the park. / While Mary was playing at the park, she saw Ben talking to himself.

While Dad was washing the dishes, Mom was watching TV.