I don't think either they or Mark realized they'd made a real claimant.

At about 1400 Mark realized that he was in deep trouble.

It was as if the poor man had no face at all, Mark realized.

Now someone in the group to the left called out, and Mark realized that those were women.

Suddenly, Mark realized that everyone was looking at him expectantly.

Mark realized it would take time before he was ready to talk.

It issued, Mark realized, from the sword held in his brother's hands.

At the last moment Mark realized that the creature was not attacking him.

Mark had never realized before just how nervous insects made him.

Mark had not realized until this moment what kind of assistance he meant to ask for.