YOU SAID:

The cat sat on the mat until I said why are you wet

INTO JAPANESE

なぜあなたは濡れているのかと私が言うまで、猫はマットの上に座っていました

BACK INTO ENGLISH

The cat was sitting on the mat until I told him why you were wet

INTO JAPANESE

あなたが濡れている理由を私が彼に話すまで、猫はマットの上に座っていました

BACK INTO ENGLISH

The cat was sitting on the mat until I told him why you were wet