YOU SAID:
I am going to play basketball with my brothers nephew
INTO JAPANESE
私は兄弟のwithとバスケットボールをするつもりです
BACK INTO ENGLISH
I am going to play basketball with my brother
INTO JAPANESE
私は兄と一緒にバスケットボールをするつもりです
BACK INTO ENGLISH
I am going to play basketball with my brother
You've done this before, haven't you.