YOU SAID:
I like to eat fast food.
INTO JAPANESE
私はファーストフードを食べるのが好きです。
BACK INTO ENGLISH
I like eating fast food.
INTO JAPANESE
私はファーストフードを食べたい。
BACK INTO ENGLISH
I want to eat fast food.
INTO JAPANESE
私はファーストフードを食べたい。
BACK INTO ENGLISH
I want to eat fast food.
That didn't even make that much sense in English.