YOU SAID:
hello guys my birthday is on March 19
INTO JAPANESE
こんにちはみんな私の誕生日は3月19日です
BACK INTO ENGLISH
Hi guys My birthday is March 19,
INTO JAPANESE
こんにちはみんな私の誕生日は3月19日です、
BACK INTO ENGLISH
Hi guys My birthday is March 19,
That didn't even make that much sense in English.