I was worried in case something might have gone wrong.

But there was no need to worry in his case.

Yet she worried the question, in the back of her mind.

Well, he didn't have to worry about it, not in any real sense of the word.

I don't think we can worry about that too much in this game.

The truth is that I was worried in the beginning.

At first he'd been worried about not having it in the house with him.

She's worried in some way about him, but I can't get anything out of her.

He did not appear to be worried in the least.

"But finally we were told not to worry about quality, in effect."