YOU SAID:
If you are my wife, then where is my sister?
INTO JAPANESE
あなたが私の妻なら、妹はどこにいるの?
BACK INTO ENGLISH
If you are my wife, where is your sister?
INTO JAPANESE
あなたが私の妻なら、あなたの妹はどこにいますか?
BACK INTO ENGLISH
If you are my wife, where is your sister?
You should move to Japan!