母(はは) hahaは wa子(こ)供(ども)た()ち() kodomotachiの no事(こと) kotoを o心(しん)配(ぱい) shinpaiしていた shiteita。 My mother was worried about the children. Literal Mother [topic-は] children [possessive-の] matter [object-を] was-worrying 子供たちの事を心配していた = 'was worrying about the children's affairs.' 事 (こと) here broadens the concern to the whole situation around the children. ~ていた = past ongoing. familyemotions~ている (ongoing state)
母(はは) hahaは wa子(こ)供(ども)た()ち() kodomotachiの no事(こと) kotoを o心(しん)配(ぱい) shinpaiしていた shiteita。 My mother was worried about the children. Literal Mother [topic-は] children [possessive-の] matter [object-を] was-worrying 子供たちの事を心配していた = 'was worrying about the children's affairs.' 事 (こと) here broadens the concern to the whole situation around the children. ~ていた = past ongoing. familyemotions~ている (ongoing state)