程度・範囲・強調N2
〜てまで
to the extent of... / even going so far as to...
Structure
V-て形 + まで（して）
Explanation
Indicates doing something to an extreme extent for a purpose, suggesting the effort is excessive or unnecessary, often with a negative evaluation (体を壊してまで働く必要はない).
Examples
命をかけてまで、その記録を守る必要はない。
There's no need to risk your life to defend that record.
徹夜してまで、この仕事を終わらせたくない。
I don't want to finish this work even if it means staying up all night.
Note
てまで often appears in negative sentences like 必要はない, emphasizing excess; てでも appears in affirmative sentences, emphasizing resolve.