Sen öğrenci misin?
English: Are you a student?
The 'soru eki' in Turkish is a question particle used to form yes/no questions. It is separate from the verb and changes form based on vowel harmony.
Use the 'soru eki' to turn a statement into a yes/no question in Turkish. It comes after the verb or the word you want to question.
Sen öğrenci misin?
English: Are you a student?
Bu kitap yeni mi?
English: Is this book new?
Kahve ister misin?
English: Do you want coffee?
O burada mı?
English: Is he/she here?
Yorgun musunuz?
English: Are you (plural/formal) tired?