Translation:Do I know you?
The order of a Spanish question is Object–Verb–Subject. Te (you) conozco (know I). If the subject is a third person noun, the same order applies: Te (you) conocen (know) las tías (the aunts)? When translated into English, the word order of a question gets reversed, and "do" gets added to the beginning of the sentence: Do the aunts know you?