彼(かの)女(じょ) kanojoは wa妹(いもうと) imoutoに ni辞(じ)書(しょ) jishoを o買(か)っ()て() katteやった yatta。 She bought her younger sister a dictionary. Literal She [topic-は] younger-sister [to-に] dictionary [object-を] bought gave. 妹に辞書を買ってやった — やった marks the casual benefactive: 'bought as a favor.' に marks the recipient. family~てやる (casual/condescending benefactive)
彼(かの)女(じょ) kanojoは wa妹(いもうと) imoutoに ni辞(じ)書(しょ) jishoを o買(か)っ()て() katteやった yatta。 She bought her younger sister a dictionary. Literal She [topic-は] younger-sister [to-に] dictionary [object-を] bought gave. 妹に辞書を買ってやった — やった marks the casual benefactive: 'bought as a favor.' に marks the recipient. family~てやる (casual/condescending benefactive)