やり損う

やりそこなう【やり損う】

〔失敗する〕 fail 《in…》; bungle; botch; spoil; mistake; make a mistake; commit [make] a blunder; be unsuccessful [baffled] 《in one's attempt》; do a bad job 《on…》; make a botch of…; mismanage; 〔機会を逸する〕 let 《an opportunity》 slip (by); miss one's chance to do.

●仕事をやりそこなう bungle [botch] the job

・実験をやりそこなう botch an experiment.

●あっ, またやりそこなっちゃった. Oops, I slipped up again.

・今度やりそこなったら辞めてもらう. If you don't get it right this time, you're fired.

・やりそこなったらごめんね. Sorry if I goof up.

・やりそこなったらどうするんだ. What do you plan to do if [in case] you fail?

・両親は当時金銭的に余裕がなくて結婚式をやりそこなったのだそうだ. I hear my parents missed out on having a wedding ceremony because at the time they couldn't afford it.