必死になって

desperately

→ 必死だ
phrase Rare #33,750
desperately Used to describe doing something with extreme effort, urgency, or desperation. It comes from 必死になる, literally “to become certain death,” but is idiomatic in modern Japanese.
JA: 彼女は必死になって助けを求めた。
EN: She desperately called for help.

彼は群衆の中から必死になって抜け出した

He desperately pushed his way out of the crowd.

ジェフミア何とか離婚だけは避けようと必死になっている

Jeff and Mia are desperately trying to avoid divorce at all costs.

私は必死になって逃げた

I ran away for my life.

答えを見つけよう必死になって考えた

I racked my brain trying to find the answer.