Do you know?
Meaning: This is a question that asks if the person you're speaking to has knowledge or information about something. For example, you might ask, "Do you know where the library is?"
Choice of Words: Do is a helping verb that indicates the start of a question. You refers to the person being addressed. Know means to have knowledge or information about something. Together, "Do you know" forms a question asking for information.
Alternative Expressions
Related Expressions