彼(かの)女(じょ) kanojoは wa母(はは) hahaに ni赤(あか)ち()ゃ()ん() akachanの no世(せ)話(わ) sewaを oさせて saseteおいた oita。 She had her mother take care of the baby. Literal She [topic-は] mother [to-に] baby's care [object-を] made-do left-in-place. させておいた combines causative させる with ~ておく ('do and leave in that state'). The mother was made to care for the baby, and that arrangement was left in place. familychildrenparenting~ておく (do in advance)causative form (~せる/~させる)
彼(かの)女(じょ) kanojoは wa母(はは) hahaに ni赤(あか)ち()ゃ()ん() akachanの no世(せ)話(わ) sewaを oさせて saseteおいた oita。 She had her mother take care of the baby. Literal She [topic-は] mother [to-に] baby's care [object-を] made-do left-in-place. させておいた combines causative させる with ~ておく ('do and leave in that state'). The mother was made to care for the baby, and that arrangement was left in place. familychildrenparenting~ておく (do in advance)causative form (~せる/~させる)