is, {-a/eodo, -deorado, -(eu)ndeul, and -neuni} and syntactic grammatical morphemes such as {-(eu)l baeneun, -gie mangjeongiji, -(eu)n/neun sem chigo, and -(eu)n/ neundedo bulguhago} were comparatively collated in terms of semantics. In terms of semantics, {-gie mangjeongiji} and {-(eu)n/neundedo bulguhago} can be preceded by fact proposition as a proposition of preceding clause, and {-(eu)n/neun sem chigo} can be accompanied by only subjunctive proposition or hypothetical proposition. In terms of the influence of the semantics of preceding clause on the following clause, {-neuni}, {-(eu)l baeneun}, and {-gie mangjeongiji} exert greater influence than other concessive expressions. In terms of the semantics of modality of the following clause, there comes the modality of [supposition] and [negative negation] in the following clause of {-(eu}ndeul}, the modality of [affirmation] in the following clause of {-neuni} and {-(eu)l baeneun}, and the modality of [supposition] and [non-fact] in the following clause of {-gie mangjeongiji}, for the most part. The rest concessive expressions show semantics of modality with the various contents of the following clause. (Hankuk University of Foreign Studies)