Kim bu?
English: Who is this?
In Turkish, 'soru kelimeleri' are question words used to ask for specific information, like who, what, where, when, why, and how.
Use 'soru kelimeleri' in Turkish to ask about people, places, time, reasons, ways of doing things, choices, and amounts. They are placed at the beginning or in the middle of a sentence, depending on what you want to know.
Kim bu?
English: Who is this?
Ne yapıyorsun?
English: What are you doing?
Nerede oturuyorsun?
English: Where do you live?
Neden geç kaldın?
English: Why are you late?
Kaç yaşındasın?
English: How old are you?