YOU SAID:
fishing fish is liking fishing fish
INTO JAPANESE
釣りの魚は釣りの魚が好きです
BACK INTO ENGLISH
I like fishing fish.
INTO JAPANESE
釣りが好きだ。
BACK INTO ENGLISH
I like fishing.
INTO JAPANESE
釣りが好きだ。
BACK INTO ENGLISH
I like fishing.
That didn't even make that much sense in English.