However, "when" in French depends on the context. It can be translated as:
* Quand (most common): This is the most common translation for "when" in most contexts. For example, "When will you arrive?" translates to "Quand arriveras-tu?"
* Lorsque: This is used when referring to a specific time or event. For example, "When I was young" translates to "Lorsque j'étais jeune."
* Au moment où: This is used for a more formal or literary style. For example, "When the sun rises" translates to "Au moment où le soleil se lève."
So, the best translation of "when" will depend on the specific context and the desired level of formality.