母(はは) hahaは wa弟(おとうと) otoutoに ni黄(き)色(いろ)い() kiiroi傘(かさ) kasaを o買(か)っ()て() katteやった yatta。 My mother bought my younger brother a yellow umbrella. Literal Mother [topic-は] younger-brother [for-に] yellow umbrella [object-を] bought-[benefactive-てやった] 買ってやった = 'bought for (him)' — ~てやる marks the action as a favor done for someone in one's care. 弟 = younger brother, に marks the beneficiary. family~てやる (casual/condescending benefactive)
母(はは) hahaは wa弟(おとうと) otoutoに ni黄(き)色(いろ)い() kiiroi傘(かさ) kasaを o買(か)っ()て() katteやった yatta。 My mother bought my younger brother a yellow umbrella. Literal Mother [topic-は] younger-brother [for-に] yellow umbrella [object-を] bought-[benefactive-てやった] 買ってやった = 'bought for (him)' — ~てやる marks the action as a favor done for someone in one's care. 弟 = younger brother, に marks the beneficiary. family~てやる (casual/condescending benefactive)