cometieran

form-of imperfect plural subjunctive third-person

cometerの三人称複数未完了接続法

English Meaning

third-person plural imperfect subjunctive of cometer

Era vital que cometieran errores para aprender de cada experiencia.

各経験から学ぶために、彼らが失敗することが不可欠でした.

It was vital that they made mistakes to learn from each experience.