YOU SAID:

if a mother is a mom then is dather

INTO JAPANESE

母親がお母さんなら、お父さんです

BACK INTO ENGLISH

If the mother is a mother, then it is a father

INTO JAPANESE

母親が母親なら、それは父親です

BACK INTO ENGLISH

If the mother is the mother, it is the father

INTO JAPANESE

母親が母親なら、それは父親です

BACK INTO ENGLISH

If the mother is the mother, it is the father