YOU SAID:

My childhood friend is the only one I have to go check on it

INTO JAPANESE

私の幼年期の友人は私がそれをチェックしに行かなければならない唯一の人です

BACK INTO ENGLISH

My childhood friend is the only person I have to go check it out

INTO JAPANESE

私の幼年期の友人は私がそれをチェックしに行かなければならない唯一の人です

BACK INTO ENGLISH

My childhood friend is the only person I have to go check it out