YOU SAID:
the cat asked me for my left nut because she was missing her right one.
INTO JAPANESE
猫は、右のナットが見つからなかったので、左のナットを私に尋ねました。
BACK INTO ENGLISH
The cat asked me for the left nut because the right nut was not found.
INTO JAPANESE
右のナットが見つからなかったので、猫は私に左のナットを求めました。
BACK INTO ENGLISH
The cat asked me for the left nut because the right nut was not found.
That didn't even make that much sense in English.