YOU SAID:

the deep sea is so deep that you cant swim

INTO JAPANESE

深い海は泳げないほど深い

BACK INTO ENGLISH

The deep ocean is too deep to swim

INTO JAPANESE

深い海は泳ぐには深すぎる

BACK INTO ENGLISH

The deep sea is too deep to swim

INTO JAPANESE

深海は深すぎて泳げない

BACK INTO ENGLISH

The deep sea is too deep to swim