YOU SAID:
i am buying this cat in two months.
INTO JAPANESE
私はこの猫を2ヶ月で購入しています。
BACK INTO ENGLISH
I bought this cat in 2 months.
INTO JAPANESE
この猫を2ヶ月で買いました。
BACK INTO ENGLISH
I bought this cat in 2 months.
You've done this before, haven't you.