Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Hatakeyama Shinichi,The establishing of Japanese existential verb iru and Grammaticalization of teiru forms,BULLETIN,21875235,Shokei University・Shokei University Junior College,2017,2017,49,29-42,https://cir.nii.ac.jp/crid/1390001206109435264,https://doi.org/10.24577/seia.2017.49_29