쉬었다

In a sentence

• 나는 잠시 쉬었다.

  I took a short break.

  Here, '쉬었다' is the past tense of '쉬다', meaning 'to rest', indicating the completion of the action of taking a break.

• 우리는 산 정상에 도착한 후 얼른 쉬었다.

  We quickly rested after arriving at the mountain top.

  In this usage, '쉬었다' denotes the act of resting in reaction to a previously completed event – arriving at the mountain top.

• 쉬었다고 느껴지지 않을 정도로 바빴다.

  I was so busy that it didn't even feel like I rested.

  Here, '쉬었다' is used to imply the act of resting, but the main sentence illustrates a feeling of insignificance of that rest due to being busy.