How do you say fine sir in french?

There isn't a direct translation for "fine sir" in French that carries the same formality and politeness. However, you can express the same sentiment with a few different options depending on the context:

Formal:

* Monsieur - This is the most formal way to address a man, equivalent to "Sir" in English.

* Monsieur, très bien - This translates to "Sir, very well" and is a more polite way of saying "fine sir."

* Monsieur, c'est parfait - This means "Sir, it's perfect" and can be used in a similar way to "fine sir" when expressing agreement or satisfaction.

Informal:

* D'accord, monsieur - This translates to "Okay, sir" and is a less formal way of agreeing with a man.

It's important to note that using "Monsieur" is the most common and respectful way to address a man in French. You can also combine "Monsieur" with other phrases to express your agreement or satisfaction.