YOU SAID:

Fish that fished fish fished fish

INTO JAPANESE

魚を釣った魚 魚を釣った

BACK INTO ENGLISH

Fish caught fish Caught fish

INTO JAPANESE

魚を捕まえた魚 魚を捕まえた

BACK INTO ENGLISH

Fish that caught a fish Caught a fish

INTO JAPANESE

魚を捕まえた魚 魚を捕まえた

BACK INTO ENGLISH

Fish that caught a fish Caught a fish