本を買ってくれた

bought a book for me

→ 本
phrase Rare #29,034
bought a book for me The 〜てくれた pattern indicates that someone did something as a favor for the speaker or someone in the speaker's in-group. 本を means “a book,” 買って means “buying,” and くれた indicates that the action benefited the speaker. The expression is informal; the polite equivalent is 本を買ってくれました.
JA: 父が本を買ってくれた。
EN: My father bought me a book.

お母さんが本を買ってくれた

My mom bought me a book.

そして本を買ってくれた

And they bought me a book.

— 大人は判ってくれない (1959)

父が本を買ってくれた

My father bought me a book.

叔父がこの本を買ってくれた

My uncle bought this book for me.

叔父が私に本を買ってくれた

My uncle bought me a book.