A shorter version of the full book "Intermediate Korean grammar". A PDF with 42 pages in total. It contains 30+ Intermediate Korean grammar lessons. Each lesson talks about the usage of the grammar and shows example sentences for it. This is a lesson-only book with none of the practices included. 
 
Main Grammar List: 
(으)ㄹ 뻔하다 - almost did
(으)ㄹ 만하다 - worth doing
-지 말고 - don’t do A, do B
(으)ㄴ/는지 알다/모르다 I know/ don’t know if
(으)ㄴ/는 대신(에) - instead of 
-(으)ㄴ/는데도 - even though, although 
(으)ㄹ 뿐(만) 아니라 - not only this, but also
기는 하지만 - but (also) 
(으)ㄴ/는 척하다 - pretend to do
(으)ㄹ지도 모르다 - might, may 
(으)ㄹ까 봐(서) - I’m worried about
게 하다 - to make someone do
-다가 - and/but then 
(으)ㄴ 지 N(Time)이/가 되다/넘다/지나다 
Verb + -게 - so that, in order to
더라고요 - I saw/experienced that.. 
-다가는 - if you keep V-ing,.. 
(느)ㄴ다면 - what If (hypothetical)
(으)ㄹ 정도로 - to the extent
(으)ㄹ 테니까 - since it might..