YOU SAID:
my sis ter is a bella is a ve ry good per son
INTO JAPANESE
私のシスターは、ベラです、息子一人あたり、とても良いです。
BACK INTO ENGLISH
My sister is Bella, very good per son.
INTO JAPANESE
私の妹はベラ、息子一人あたりとても良いです。
BACK INTO ENGLISH
My sister Bella is very good per son.
INTO JAPANESE
私の姉のベラは一人の息子にとても良いです。
BACK INTO ENGLISH
My sister Bella is very good for one son.
INTO JAPANESE
私の姉のベラは一人の息子にとても良いです。
BACK INTO ENGLISH
My sister Bella is very good for one son.
That didn't even make that much sense in English.