없었으나

In a sentence

• 그 당시에는 이 문제가 없었으나 지금은 많은 문제가 발생하고 있습니다.

  At that time, this issue did not exist, but now many problems are occurring.

  In this sentence, '없었으나' is used to indicate a past situation where something (the issue) was absent, contrasted with the current situation using '그러나' (but).

• 그 회사는 그립이 좋지 않았고 내구성이 없었으나 디자인은 탁월했습니다.

  The company lacked durability and good grips, but their design was excellent.

  Here, '없었으나' is used to describe the absence of durability in a company's items, followed by highlighting positive traits using '그러나' (but).

• 그들이 그곳에 없었으나 너무 멀리 있어서 올 수 없었다고 생각합니다.

  They were not there, but I think they couldn't come because it was too far.

  In this context, '없었으나' expresses the absence of people at a location, with the sentence continuing to explain a reason.