YOU SAID:

I to fish in the biggest pond there ever was

INTO JAPANESE

私が今までにあった最大の池で釣りをする

BACK INTO ENGLISH

Fishing in the biggest pond I ever had

INTO JAPANESE

今までで最大の池での釣り

BACK INTO ENGLISH

Fishing in the largest pond ever

INTO JAPANESE

史上最大の池での釣り

BACK INTO ENGLISH

Fishing in the largest pond ever