YOU SAID:
I love puppies because they are the cutest thing in the world
INTO JAPANESE
彼らは世界で最もかわいいので、私は子犬が大好きです
BACK INTO ENGLISH
Because they are the most cute in the world, I love puppies
INTO JAPANESE
彼らは世界で一番キュートなので、私は子犬が大好きです
BACK INTO ENGLISH
Because they are the most cute in the world, I love puppies
That didn't even make that much sense in English.