The purpose of this study is to find the syntactic rules in adnominal clauses in 19th century`s Korean. This paper can be summarized as follows :
The grammatical informations in adnominal clauses are tense(present, decided, undecided, recollection, perfect, perfect-recollection, perfect-undecided), honorific (subject `-isi-`/object `-sΛp-`), slipped object sign `-o/u-`.
In 19th century, object honorific and slipped object sign `-o/u-` were broken down. Therefore they were rarely found in adnominal clauses, but only `nil-on(nirΛ+o+n)` could be found.
Formal adnominal clauses (`-il k?s, -in k?s` structure) and `adnominal clause+k?s=nominal clause` structure were come out from 17th century for the first time, and `-hΛ nΛ-` omitted adnominal structures that make new adnominal endings `-tan, -ran` in Modern Korean were come out from 17th century too.