Control of the post shifted back and forth in the following days.

It shifted back and forth in the shadow area, a dark wet movement.

Joey moved to his spot, but kept shifting back and forth.

He was concerned with making certain they didn't lose any ground shifting back and forth between the two school systems.

One of the guys was shifting back and forth on his feet.

The football player shifted back and forth on the balls of his feet.

Others find it easy to track several different processes at once by shifting back and forth as needed.

Relatively large areas seem to shift back and forth as units from one time path to another.

Here the guard looked more alert, eyes shifting back and forth.

With a little practice, we could shift back and forth easily.