YOU SAID:
If you had kept the cat inside it would not have caught the field mice.
INTO JAPANESE
あなたが猫を中に入れておいていれば、野ネズミを捕まえなかったでしょう。
BACK INTO ENGLISH
If you had let the cat in, you wouldn't have caught a wild rat.
INTO JAPANESE
もし猫を中に入れていたら、野生のネズミを捕まえていなかったでしょう。
BACK INTO ENGLISH
If I had let the cat in, I wouldn't have caught a wild rat.
INTO JAPANESE
もし私が猫を中に入れていたら、私は野生のネズミを捕まえなかっただろう。
BACK INTO ENGLISH
If I had let the cat in, I would not have caught a wild mouse.
INTO JAPANESE
もし私が猫を中に入れていたら、私は野生のネズミを捕まえなかったでしょう。
BACK INTO ENGLISH
If I had let the cat in, I would not have caught a wild mouse.
You've done this before, haven't you.