YOU SAID:
Hello everyone this is you captain speeking.
INTO JAPANESE
皆さんこんにちは、キャプテンです。
BACK INTO ENGLISH
Hello everyone, this is Captain.
INTO JAPANESE
みなさんこんにちは、キャプテンです。
BACK INTO ENGLISH
Hello everyone, this is Captain.
That didn't even make that much sense in English.