YOU SAID:

I once ate a piece of chicken and it was the best piece of chicken ever

INTO JAPANESE

私はかつて鶏肉を食べたことがあり、今までで最高の鶏肉だった

BACK INTO ENGLISH

I had eaten chicken before and was the best chicken ever

INTO JAPANESE

私は以前に鶏肉を食べたことがあり、今までで最高の鶏肉でした

BACK INTO ENGLISH

I have eaten chicken before and was the best chicken ever

INTO JAPANESE

私は以前に鶏肉を食べたことがあり、今までで最高の鶏肉でした

BACK INTO ENGLISH

I have eaten chicken before and was the best chicken ever