A few minutes later, as they sat back in the car, a young woman tapped on the window.

I got back to the car and tapped on the window.

She sat up in the bed and tapped on the wall one time.

Someone tapped him on the back of the head with something hard.

I had to tap on his window to get him to look at me.

She tapped on my door a few minutes before five.

You could always tell because he would tap his feet on the floor.

Then I felt something tapping me on the head and looked up.

A few minutes later they heard someone tapping on the study window!

The sound of tapping on the window made me start.