어떻게 그런 생각을

how could you think of that

→ 어떻게
phrase Rare #28,856
how could you think of that Usually followed by 하다; depending on context, it can express surprise or ask how someone came up with an idea.
KO: 어떻게 그런 생각을 했어요?
EN: How did you come up with that idea?

어떻게 그런 생각을 하세요?

How do you come to think that way?

— 페인 앤 글로리 (2019)

어떻게 그런 생각을 할 수 있어?

How can you think like that?

— 싸이코 (1960)

어떻게 그런 생각을 하게 됐죠?

How did you come up with that idea?

— 데이 워치 (2006)