문제들이

In a sentence

• 요즘 학교에서 발생하는 문제들이 심각해졌습니다.

  The problems occurring in schools these days have become serious.

  Here, '문제들이' refers to various issues occurring at schools in a general sense. It is the subject of the sentence.

• 우리 프로젝트에서 문제들이 생겨서 일정이 늦춰졌어요.

  Problems arose in our project, causing delays in the schedule.

  In this usage, '문제들이' specifies the difficulties encountered during the project.

• 그가 제안한 해결책은 문제들이 해결될 가능성을 높였습니다.

  The solution he proposed increased the likelihood of the problems being solved.

  Here, '문제들이' stands for the challenges or obstacles that are expected to be addressed by the proposed solution.