rack one's brain

Verb

figuratively

(figuratively) To struggle to think of or remember something.

Japanese Meaning

頭をひねって思い出そうとする / 懸命に考え、記憶を呼び起こそうとする

One may rack one's brain for days trying to solve a difficult puzzle.

人は難しいパズルを解くために、何日も頭をひねることがある。

Sense（1）

(figuratively) To struggle to think of or remember something.

I have been racking my brain all day trying to think of a birthday present for her.

racks one's brain

（ present singular third-person ）

racking one's brain

（ participle present ）

racked one's brain

（ participle past ）

racked one's brain

（ past ）