This is the 18525th most frequent Korean word.
시작했고
"Started" or "has started."
Here, '시작했고' is used to describe the initiation or commencement of a new project, indicating the action of starting.
새로운 프로젝트가 시작했고 팀원들이 작업을 시작했습니다.
The new project has commenced, and the team members have begun their work.
In this sentence, '시작했고' indicates the action of rain beginning or its originating occurrence.
비가 아침에 시작했고 아직 그치지 않았습니다.
The rain began in the morning and hasn't stopped yet.
Here, '시작했고' is used to denote the event of an online class commencing or starting at a specific time.