YOU SAID:

my sisters mother is my fathers child which makes me his grandson and my sister his daughter and granddaugther

INTO JAPANESE

私の姉妹の母は、私は孫と私の妹私の父親の子供彼の娘と granddaugther

BACK INTO ENGLISH

Sister of my mother, my grandson and my sister my father children of his daughter and granddaugther

INTO JAPANESE

私の母、私の孫と私の妹の妹娘と granddaugther の私の父の子供たち

BACK INTO ENGLISH

My granddaugther of my mother, my son and my sister my sister daughter father children

INTO JAPANESE

私の母、私の息子と私の妹の私の granddaugther 私の妹の娘父の子供たち

BACK INTO ENGLISH

Children of the sister of my mother, my son and my sister my granddaugther my daughter father

INTO JAPANESE

私の母、私の息子と私の妹の妹の子供たち私の granddaugther 私の娘の父

BACK INTO ENGLISH

My granddaugther of the sister of my mother, my son and my sister's kids my daughter's father

INTO JAPANESE

私の granddaugther 私の母、私の息子と私の妹の妹の子供の私の娘の父

BACK INTO ENGLISH

My granddaugther my mother, my son and my sister sister's child my daughter father

INTO JAPANESE

私の granddaugther 私の母、私の息子と私の妹の妹の子父娘

BACK INTO ENGLISH

My granddaugther my mother, my son and my sister my sister child dad daughter

INTO JAPANESE

私の granddaugther 私の母、私の息子と私の妹私の妹子の父娘

BACK INTO ENGLISH

My granddaugther my mother, my son and my sister my sister child dad daughter