During the 18th and early 19th century, the image kept changing.

Several of them said he kept changing his mind about what to do.

Also, I like to keep changing the subject, to surprise myself.

One day he kept changing his orders every hour or so.

And the second was that she kept changing her mind about the most basic issues.

So if that's what we really want, why do they keep changing it?

I'd tried for an hour to tell him our terms before, but he'd kept changing the subject.

At least they can keep changing it until things get better.

"You got to keep changing the style all the time."

"They kept changing the ice every three hours day and night."