He caught himself harboring such strange thoughts that he was frightened.
I caught myself harboring a feeling of hatred toward him which I vainly tried to overcome.
"But anyone harboring them is breaking the law—especially in my county," Fitzgerald said, the usual venom in his voice.
You're not accused of any crime so I'm not harboring any fugitives.
Courting a widow was one thing, but harboring a nagging feeling she might not be widowed was quite another matter.