YOU SAID:
my father is my friend
INTO JAPANESE
私の父は私の友人
BACK INTO ENGLISH
My father is my friend.
INTO JAPANESE
私の父は、私の友人です。
BACK INTO ENGLISH
My father is a friend of mine.
INTO JAPANESE
私の父は、私の友人です。
BACK INTO ENGLISH
My father is a friend of mine.
Come on, you can do better than that.