I warned George to keep an eye on him where money was concerned.

Instinct warned him to keep a wall of indifference between them.

He warned them to keep closer watch over their children.

Some instinct warned her to keep that information to herself.

He is interested, but warns Hyde to keep an eye on the others.

He put a hand on my neck, warning me to keep still.

She warned me to keep the news from the public.

Then they warned us to keep still, and backed out the door.

I warn you to keep a watch upon your words.

And warn me to keep my distance in the future.