Hey, what are you doin with that old guitar?

Hey, what are you doin' here all by yourself?

I heard someone call out 'hiya doin'' as I walked by, so I turned and smiled.

When I ran into my old neighbor at the grocery store, I smiled and asked how are you doing.

It was his doing that led to the project's failure.

I'm doing my best to finish the project before the deadline.

The rubber ball hit the wall with a sharp doing and bounced back across the hallway.

His wrong-doing record made it impossible for him to get a security clearance.

She documented all her doings in a small notebook.

She regretted doing ill in her youth and sought to make amends.