'On Gentlemen's honour.'
On someone's honor.
On the honor of a lady.
Old men play on a jungle-gym.
the children are standing on the sign post
There are no people who would try to take over Hardknot Fort because of how remote it was.
couple of men on window  side an a person on bed
An animal is attacking a drowning man.
They've been so active, I'm confident they have enough people to do the job.