YOU SAID:
I love my mother, but not my father.
INTO JAPANESE
私は母を愛していますが、父は愛していません。
BACK INTO ENGLISH
I love my mother, but my father doesn't.
INTO JAPANESE
私は母を愛していますが、父はそうではありません。
BACK INTO ENGLISH
I love my mother, but my father is not.
INTO JAPANESE
私は母を愛していますが、父はそうではありません。
BACK INTO ENGLISH
I love my mother, but my father is not.
That didn't even make that much sense in English.