hi im native persian you write : which is your birthday ! the correct form is: Tavalodetun key hast ? we use kodum to select something , example :kodum ro mikhay ghermez ya siah ?

Hi, you can say some different phrases: - tavalodet key hast? - key tavalodete? - tArikhe tavalodet key-e? - tArikhe tavalodet key hast? - tavalodet che tArikhi-e? You can replace "to" for "shomA" as well. ;) - tavalode shomA key hast? - key tavalodetun-e? - tArikhe tavalode-tun key-e? - tArikhe tavalode shomA key hast? - tavalode shomA che tArikhi-e/ hast? "tArikh" means "date". ;) You can use "kodoom" if you ask the question as below: "tavalode shomA kodoom tarikhe? " which is not very common. ;) Great job! All the best Language Fan