YOU SAID:

You and I wouldn't even know each other if rats hadn't started swimming

INTO JAPANESE

ネズミが泳ぎ始めなかったら、あなたと私はお互いを知りませんでした

BACK INTO ENGLISH

If the mouse hadn't started swimming, you and I wouldn't have known each other.

INTO JAPANESE

もしねずみが泳ぎ始めていなかったら、あなたと私はお互いを知らなかったでしょう。

BACK INTO ENGLISH

If the mouse hadn't started swimming, you and I wouldn't have known each other.