When are you coming in french?

The literal translation of "When are you coming?" in French is: "Quand est-ce que tu arrives ?"

However, depending on the context, there are other ways to say it:

* "Quand viens-tu ?" (more informal)

* "À quelle heure arrives-tu ?" (if you are asking about the time)

* "Quand comptes-tu venir ?" (if you are asking about their plans)

It is important to choose the correct phrase based on the situation and the level of formality.