てでも
文法の解説は英語です。
用法
Used to express "even doing -", and show the speaker's strong determination like "to make something come true, it is right to do extreme -"
例文
何としてでも痩せたい
I'll do whatever it takes to lose weight
どんな手を使ってでも勝ちとってみせる
I will win by any means necessary