어려웠고

In a sentence

• 그 프로젝트는 정말 어려웠고 많은 노력이 필요했습니다.

  That project was really difficult and required a lot of effort.

  In this sentence, "어려웠고" is used to describe the difficulty faced with a project, connecting it to the subsequent clause emphasizing the need for effort.

• 그는 어렸을 때 삶이 어려웠고 많은 장애물을 극복해야 했습니다.

  When he was young, life was difficult and he had to overcome many obstacles.

  Here, "어려웠고" describes challenging life conditions during youth and links this to the actions needed to overcome obstacles.

• 다른 문화와 언어를 배우는 것이 어려웠고 시간이 오래 걸렸습니다.

  Learning about other cultures and languages was difficult and took a long time.

  In this context, "어려웠고" denotes the challenges in acquiring cultural and linguistic knowledge, transitioning into the time-consuming aspect of the task.