YOU SAID:
The only thing I like is pizza and tacos.
INTO JAPANESE
私が好きなのはピザとタコスだけです。
BACK INTO ENGLISH
I only like pizza and tacos.
INTO JAPANESE
私はピザとタコスだけが好きです。
BACK INTO ENGLISH
I only like pizza and tacos.
That didn't even make that much sense in English.