YOU SAID:
My cat is on the moon riding a sandwi
INTO JAPANESE
私の猫はサンドウィに乗って月の上にいます
BACK INTO ENGLISH
My cat is over the moon riding sandwi
INTO JAPANESE
私の猫はサンドウィに乗って月の上にあります
BACK INTO ENGLISH
My cat is over the moon riding sandwi
You've done this before, haven't you.