YOU SAID:
my friends are all good people
INTO JAPANESE
私の友人は、すべての良い人
BACK INTO ENGLISH
A friend of mine is all good people
INTO JAPANESE
私の友人はすべての良い人です。
BACK INTO ENGLISH
My friends are all good people.
INTO JAPANESE
私の友人は、すべての良い人です。
BACK INTO ENGLISH
My friends are all good people.
That didn't even make that much sense in English.