Study On The <へてぃゐ>

Aspect is an important category in Japanese grammar and it causes great attention of people who studies the eastern Asian language. Being the representative form of aspect in Japanese, research achievements about < <へてぃゐ> are too numerous to mention. The thesis has chosen new research method in the study of forms of <へてぃゐ> by utilizing demonstration despite the many use of references from previous results. Starting with the categories of verbs, the thesis chooses to discuss firstly Kindaichiharuhiko' s Four-fold classification, a typical research method in this field. The thesis has made discussions on three verbs which are available to be affiliated by forms of <へてぃゐ>, i.e. durative verbs, instant verbs and the fourth verbs. Based on Fujiimasa' s achievements, the author has reduced the forms of <へてぃゐ> to five types from the angle of aspect. In addition the author also inspected and validated the practical usages of the forms of <へてぃゐ> by examining large amount of materials from the internet and novels.According to the author' s thought, such research methods can maximally simplify the difficulties in understanding the forms of <へてぃゐ>. And such research method is an effective and easy way in understanding and mastering the significance of the forms of <へてぃゐ> both from the angels of aspect study and learning of Japanese.