The act of moving swiftly on foot
"She was running down the street when it started to rain."
The act of engaging in a game or activity for enjoyment
"The children were playing in the park all morning."
The act of performing a job or task
"He was working on his project when I called him."
The act of controlling and operating a vehicle
"She was driving to the grocery store when she heard the news."
The act of viewing something attentively
"They were watching a movie when the power went out."
The act of being in a state of rest with closed eyes
"The baby was sleeping when the loud noise woke him up."
The act of preparing food by heating it
"She was cooking dinner when the fire alarm went off."