YOU SAID:
おれは海賊王になる。
INTO JAPANESE
おれは海賊王になる。
BACK INTO ENGLISH
I become King of the pirates.
INTO JAPANESE
海賊王になります。
BACK INTO ENGLISH
King of the pirates.
INTO JAPANESE
海賊王。
BACK INTO ENGLISH
The King of the pirates.
INTO JAPANESE
海賊王。
BACK INTO ENGLISH
The King of the pirates.
That didn't even make that much sense in English.