YOU SAID:
I have one son and two daughters
INTO JAPANESE
私は 1 人の息子および 2 人の娘があります。
BACK INTO ENGLISH
I have one son and two daughters.
INTO JAPANESE
私には娘が2人います。
BACK INTO ENGLISH
I have two daughters.
INTO JAPANESE
私には娘が2人います。
BACK INTO ENGLISH
I have two daughters.
That didn't even make that much sense in English.