YOU SAID:
Once apon a time, I killed your family
INTO JAPANESE
一度謝罪したら家族を殺した
BACK INTO ENGLISH
Once I apologized, I killed my family.
INTO JAPANESE
謝ったら家族を殺した
BACK INTO ENGLISH
I apologized. I killed my family.
INTO JAPANESE
謝った家族を殺した
it is unlikely that this phrase will ever reach equilibrium