"My duty forbids it, sir; prithee hinder me not, the night comes on."
My duty as his wife forbids this.
"My duties forbade an earlier visit," he said.
It was as if all the heroines were cast in circumstances where duty forbade them to marry.
If your Ministerial duties do not forbid, could you be the company?
However, we were in agreement that duty and honor alike forbade any thought of turning back.
Almost you tempt me to change places with you, but my duty forbids.
The duties of your high position forbid the repetition of the hazard.
Later he said, "If our duty did not forbid it, I would ask you to join me in death.
He could tell they ached to go defend Logan, their prince, but duty forbade them from disobeying their king.