YOU SAID:
I like cheeseburgers and fries, they are so yummy
INTO JAPANESE
私はチーズバーガーとフライドポテトが好きで、とてもおいしいです
BACK INTO ENGLISH
I like cheeseburgers and fries, they are very delicious
INTO JAPANESE
私はチーズバーガーとフライドポテトが好きで、とても美味しいです
BACK INTO ENGLISH
I like cheeseburgers and fries, they are very delicious
That didn't even make that much sense in English.