Learn how -는 듯 describes how something seems and -는 줄 알았다/몰랐다 says what you thought or didn't know.
By the end, you can use -는 듯 to describe how something looks or seems, and -는 줄 알았다/몰랐다 to say what you thought or didn't expect. You can also choose the right form (-는, -(으)ㄴ or -(으)ㄹ) for each one.
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