Subcategoization of English adverbials and their Semantic Representation Park, Tae-gyu.(Nambu University) The purpose of this paper is to explore the subcategorization of adverbials; There are two syntactic category of adverbs such as predicate adverbs and sentential adverbs. However, it is not enough to classify all the adverbs into two categories, because some semantics characteristics of adverbs could not be treated as the same type even though they belong to the same category. So it is necessary to subclassify the sentential adverbs into a illocutionary, evaluative, evidential and hearsay adverbials. All the adverbials can be described by the subatomic semantic which is well known to be a devise for the treatment of entailment between the sentences with adverbials. However, there are some residual problems such as the lexical ambiguity and semantic functional hierarchy of adverbs, and adverbial selectional constraints.