Damnedest

He practiced his damnedest for the piano recital.

He practiced his damnedest to learn a new language.

She sang her damnedest at the concert to win over the audience.

He studied his damnedest to get into a prestigious university.

She had the damnedest look on her face when she heard the news.

She was in the damnedest mood after her boss criticized her work.

She gave him the damnedest look when he interrupted her.

He was in the damnedest mood when he came back from work.

He had the damnedest time trying to fix his car's engine.

She had the damnedest luck with men until she met her husband.

She has the damnedest habit of leaving her shoes everywhere.

She made the damnedest mistake by forgetting her sister's birthday.

She had the damnedest time finding her keys this morning.