He'd let Timothy go even though the boy had sworn revenge.

The boy swore that, every time he heard the alarm, he would heed its message.

Anna didn't know if the boy prayed or swore.

The boy would swear blind he was innocent, of course, but the evidence was overwhelming.

The boy swore, turned to look for his fallen weapon and was shot in the open mouth.

"A boy of your intelligence shouldn't swear," Smith said disapprovingly.

The two boys became close friends and swore to avenge one another.

On top of that the boy can't swear the heart charm was in the car.

I was a boy; boys swear things, and never keep them.

All the boys swore that they had seen the beast again and again, though no two of them gave exactly the same description.