YOU SAID:

You can milk a cow, but never cow a milk.

INTO JAPANESE

牛のミルクが、決して牛乳です。

BACK INTO ENGLISH

Cow's milk is never the milk.

INTO JAPANESE

牛のミルクは牛乳ではありません。

BACK INTO ENGLISH

Cow's milk is not milk.

INTO JAPANESE

牛のミルクは牛乳ではないです。

BACK INTO ENGLISH

Cow's milk is not milk.