She is playing while his mother prepares her dinner 
he is crying while her brother hits her leg
they're laughing while she tells them jokes
i was studing while you were at the movies with your friends.
We stayed in our old house, and for a while it seemed like we had never left.
while i was driving i saw a car accident.
he is taking care of everything in the house while his parents are out of town.
while the music was playing jane and edward were dancing.
While we are cutting the grass, you will pick the apples.
 While you are picking the apples, we are going to cut the grass.
he is doing the homework while i whash the dishes