YOU SAID:

Isnt it good to swim in a good swimming pool

INTO JAPANESE

いいプールで泳ぐのはいいじゃないですか

BACK INTO ENGLISH

Isn't it nice to swim in a nice pool?

INTO JAPANESE

素敵なプールで泳ぐのは素敵ではないですか？

BACK INTO ENGLISH

Isn't it nice to swim in a nice pool?