He did swear under his breath, but she was the only one who heard him.

They heard him drop something and swear under his breath.

The lady heard him out, and swore under her breath.

He heard the hurt in her voice and swore under his breath.

She saw money changing hands and swore under her breath.

Henry saw the men at the same moment, and swore under his breath.

Harry swore under his breath as he turned away from the man.

Paris swore under his breath and began to run himself.

He swore under his breath and walked back to camp.

Jake took one look at them and swore under his breath.