YOU SAID:

If only I had a million dollars, that would be cool.

INTO JAPANESE

もし私が百万ドルを持っていれば、それはクールだろう。

BACK INTO ENGLISH

If I had a million dollars, it would be cool.

INTO JAPANESE

もし私が百万ドルあれば、それはかっこいいでしょう。

BACK INTO ENGLISH

If I were a million dollars, that would be cool.

INTO JAPANESE

もし私が百万ドルだったら、それはクールだろう。

BACK INTO ENGLISH

If I were a million dollars, that would be cool.