This paper deals with two problems occurring in the process of labelling semantic role to Sejong Corpus. The first problem is some discrepancy among a case-frame dictionary used for labelling semantic role, a constructed case-frame dictionary and Sejong corpus. The typical examples of discrepancy between a case-frame dictionary and Sejong corpus are ``appearance of compound words`` and semantic role tagging to the sentence with syntactic auxiliary verb constructions. To solve this problems, an extended case-frame dictionary should be constructed with supplement and modification of annotated semantic roles. The other problem is a verb problem not solvable with the semantic tagging program, ‘UTagger-SR’. Since ‘UTagger-SR’ generates and presents verbs as their original forms of presented predicates, compound words with space or syntactic auxiliary verbs are not taken into consideration. The worker tagging semantic roles should tag semantic roles, treating a compound word with spacing as one word, and a sentence with an auxiliary verb construction as one verb consisting of a non-auxiliary verb and an auxiliary verb. Then, in the process of generating results, post-processing is needed. The post-processing includes treating a verb belonging to compound words as a compound word regardless of spacing between letters and combining the auxiliary verb and the non-auxiliary verb together in case of an auxiliary verb construction. (Ulsan University)