The aim of this paper is to present a methodology for verification of correct usage, based on three information sources: TV drama corpora (LOST and FRIENDS), English dictionaries and the judgment of native speakers. TV drama corpora which clearly specify usage situations are suitable for understanding the whole context of usage. Conrad (2010) supposes that corpus plays an active role in investigations of language use and uncovering typical patterns rather than making judgments of acceptability. This study, based on Conrad's point of view, concludes first that corpus data should be available to detect usage trends, and second that the multi-strata approach composed of the three information sources is essential for the verification of correct usage. This study focuses on two English expressions, "go out" and "have a talk", and it is shown that "go out" cannot be used to describe a trip to outside of town, and "have a talk" should not be used to describe "have a chat".