시작

In a sentence

• 나는 오늘 새로운 프로젝트를 시작했다.

  I started a new project today.

  Here, '시작하다' (to start) is used to describe the beginning of a particular action, specifically initiating a new project. It highlights the transition from not engaging to actively commencing the activity.

• 비가 오기 전에 산행을 시작하는 것이 좋습니다.

  It is good to start the hike before it rains.

  In this sentence, '시작하다' (to start) communicates the notion of initiating an activity with a focus on the timing or conditions under which the activity (the hike) is undertaken.

• 수업이 20분 후에 시작될 예정입니다.

  The class is scheduled to start in 20 minutes.

  Here, '시작되다' (to be started) is used in the passive voice, involving the scheduled beginning of an event (the class) as dictated by its arrangement or plan.