YOU SAID:
hello im under the water please help me
INTO JAPANESE
こんにちはイム水の下で私を助けてください
BACK INTO ENGLISH
Hi im please help me under water
INTO JAPANESE
こんにちはイムは、水中で私を助けてください
BACK INTO ENGLISH
Hi im please help me in the water
INTO JAPANESE
こんにちはイムは、水の中で私を助けてください
BACK INTO ENGLISH
Hi im please help me in the water
That didn't even make that much sense in English.