fallasen

Verb

form-of imperfect plural subjunctive third-person

fallarの三人称複数の仮定法過去形

English Meaning

third-person plural imperfect subjunctive of fallar

Si fallasen en cumplir sus promesas, perderían la confianza de todos.

もし彼らが約束を守ることに失敗したら、皆の信頼を失ってしまうでしょう。

If they were to fail in keeping their promises, they would lose everyone's trust.