YOU SAID:

Me me the biggest boy of all the small boys

INTO JAPANESE

私は私のすべての小さな男の子の最大の男の子

BACK INTO ENGLISH

I am the biggest boy of all my little boys

INTO JAPANESE

私は私のすべての小さな男の子の最大の男の子です

BACK INTO ENGLISH

I am the biggest boy of all my little boys