... TOPIK Advanced Level Grammar TOPIK ADVANCED LEVEL GRAMMAR ~ㄴ/는가 싶다 ~ㄴ/는가 싶다 is used to express a supposition (“I think it ... diligently, but she didn’t study anything but the alphabet Page | www.topikguide.com TOPIK Advanced Level Grammar ~답시고 This grammar structure can also be used with descriptive verbs In this case, ... a supposition, a plan, or a situation Page | 10 www.topikguide.com TOPIK Advanced Level Grammar You can see “터이다" as the root of a lot of grammar structures, such as 텐데 (터이 + 은데) and 테니까 (터이...