Some examples and use cases from the internet:

Some examples and use cases from the internet:

• With the officer on duty of provincial commander; please...
• Lopez collapsed while on duty today.
• When I received your message, I was on duty of course.
• For the purpose of this Article a station shall not be considered staffed if the safety, security, ticket sales or revenue protection duties of the on
• For the purpose of this Article a station shall not be considered staffed if the safety, security, ticket sales or revenue protection duties of the on
• duty staff necessarily preclude them from offering such assistance.
• duty staff necessarily preclude them from offering such assistance.
• I'm on duty of a sort, you know.

• I'm on duty and you're under arrest.
• I'm on duty of a sort, you know.
• I'm on duty, I can't.
• I mean I'm on duty the whole night.
• When I received your message, I was on duty of course.
• I'm on duty at the post office.
• No, I'm supposed to be on duty...