know (someone or something) to be (something)(redirected from know you to be)
know (someone or something) to be (something)
To regard or recognize someone or something as being a certain way or a particular type of person or thing. Often used in passive constructions. I have always known Sarah to be an honest woman, so I believe what she says. Although it is the most commonly used operating system in the country, within tech circles it is known to be sloppy and inefficient.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.