The phrase "when are you" is typically part of questions asking about the timing of an action or availability. It is used to inquire about the specific time or period someone will do something or be available. For example, "When are you available?" or "When are you planning to leave?" are common uses. In conversational English, "when are you" often introduces a question focusing on timing, and it can be followed by verbs like "doing," "planning," or "available." It contrasts with "when do you," which can imply more general intentions or habitual actions. If the question is simply "when are you," it is incomplete on its own and typically needs more context or a verb to form a complete question or statement. For example, "When are you coming?" or "When are you arriving?" sound natural, whereas "when are you" alone is not a complete sentence. Let me know if a more specific usage or explanation is needed!
