Here are some examples:
PASTWhile I was driving my car, I was drinking a Starbucks coffee.
When I saw my old friend, I ran and gave her a hug.
I was watching T.V. while my dog was taking a nap.
I went inside when I realized the door was open.
PRESENTWhile I am correcting papers, I listen to music.
When I go to Mexico, I always eat tons of guacamole.
They are eating dinner while the kids are playing.
When we arrive, we will have lunch.
Hope this helps! Leave any questions below you may have below...