YOU SAID:
Ive come to make an announcement.
INTO JAPANESE
私は発表をするようになりました。
BACK INTO ENGLISH
I started making announcements.
INTO JAPANESE
私は発表を始めました。
BACK INTO ENGLISH
I started the announcement.
INTO JAPANESE
私は発表を始めました。
BACK INTO ENGLISH
I started the announcement.
That didn't even make that much sense in English.