본선행이

In a sentence

• 그 선수는 이번 대회에서 본선행이 확정되었다.

  That player has secured their place in the finals of this competition.

  The term '본선행이' is used here to mean the act of advancing or being confirmed to proceed to the finals.

• 팀의 본선행이 걸린 마지막 경기에서 최선을 다해야 합니다.

  The team must do their best in the final match to secure advancement to the finals.

  Here, '본선행이' refers to the potential opportunity or condition to advance to the finals, contingent on the game.

• 이전에 본선행이 좌절된 적이 있지만, 이번엔 성공할 것이다.

  Previously, advancing to the finals had been thwarted, but this time it will succeed.

  In this sentence, '본선행이' is used to describe the event or possibility of reaching the finals in a competition.