As a conjunction:
* Quand: This is the most common translation for "when" as a conjunction, meaning "at the time that."
* Example: "Quand j'ai vu mon ami, j'étais très heureux." (When I saw my friend, I was very happy.)
* Lorsque: Similar to "quand," this is another way to say "when" and is often used in more formal contexts.
* Example: "Lorsque la pluie a cessé, nous sommes sortis." (When the rain stopped, we went outside.)
* Dès que: This translates to "as soon as" and is used for actions that happen immediately after something else.
* Example: "Dès que tu arriveras, appelle-moi." (As soon as you arrive, call me.)
As an interrogative:
* Quand: This is the most common translation for "when" as a question.
* Example: "Quand est-ce que tu es arrivé?" (When did you arrive?)
As a relative pronoun:
* Quand: This is the most common translation for "when" in a relative clause.
* Example: "Le jour quand j'ai rencontré mon amour, j'étais très heureux." (The day when I met my love, I was very happy.)
It's important to consider the context to choose the best translation for "when" in French.