However, I should like to register again my concern that we still need more information.

But at the same time, his quick mind registered their concern.

However, we must register our concern about the hippogriff in question.

He smiled back at her, but his eyes registered his concern.

Many British authors and artists have come forward to register their concern over the proposed cuts.

The crew turned at the sound of voices, registering confusion and concern.

He ran to the lip of the stage, registering embarrassment and concern.

In the flickering light of the oil lamp, his face registered polite concern.

The writer asks that a company official travel to Nigeria to register his concern with the authorities here.

To register their concern about global warming, people can petition their government.