jog
Running for exercise is called “jogging.” A jog is slower than a run. It’s not a competitive activity.

- He’s jogging.
- He likes to go for a jog in the morning. (This sentence uses “jog” as a noun.)
- Jogging is a good way to lose weight. (In this sentence, “jogging” is a gerund.)
- Do you like to jog? (to jog = infinitive)
- My friend Bob jogs about three miles every other day.
- I used to jog, but now I ride a bike for exercise.