YOU SAID:
be careful when am swimming yes
INTO JAPANESE
泳いでいるときは注意してください
BACK INTO ENGLISH
Please be careful when swimming
INTO JAPANESE
水泳には注意してください
BACK INTO ENGLISH
Please be careful about swimming
INTO JAPANESE
水泳には注意してください
BACK INTO ENGLISH
Please be careful about swimming
That didn't even make that much sense in English.