YOU SAID:
brown cows aren’t making chocolate milk
INTO JAPANESE
茶色の牛はチョコレートミルクを作っていない
BACK INTO ENGLISH
brown cows don't make chocolate milk
INTO JAPANESE
茶色の牛はチョコレートミルクを作らない
BACK INTO ENGLISH
brown cows don't make chocolate milk
You've done this before, haven't you.