YOU SAID:
Would you like to buy a cat?
INTO JAPANESE
あなたは猫を買ってみませんか?
BACK INTO ENGLISH
Why do not you buy a cat?
INTO JAPANESE
なぜあなたは猫を買わないのですか?
BACK INTO ENGLISH
Why are not you buying a cat?
INTO JAPANESE
なぜあなたは猫を買っていないのですか?
BACK INTO ENGLISH
Why are not you buying a cat?
You've done this before, haven't you.