3 - 2 ~( 으 )ㄴ , 도

~(으)ㄴ make a adjective out of a verb ( past tense ) 도 means " as well as, too, also...etc. in English. For example, if you want to say, "me too "or "I also" you can say, "저도(polite)/나도(casual)".

" Adj + (으)ㄴ데/V + 는데 " is a short conjunction for 그런데 which has the meaning of "But, so/therefore or and ". It is used to express background information about anything. 그런데 connects two complete sentences while " Adj + (으)ㄴ데/V + 는데 " connects two clauses.