The Use of Compound Auxiliary Verb [beki da] in Modern Era

Abstract

- [beki da] is one of many kinds of The Compound Words (Fukugouji) that the use is similar with
[hazu]. The form itself that is being used nowadays, is not the same with the form it used to be in Modern Era.
As we know, that Japanese language has some influence from foreign language, it is necessary to know how it
changes so that Japanese learners can use this expression correctly. This research has a purpose to know what
exactly the different of form that [beki da] had before, especially in Modern Era. Several examples are compiled
from Taiyo magazine, Asahi newspaper, and the novels in Modern Era to know whether such a form is used or
not. As a conclusion, it can be said that [beki dewa nai] can be defined as [shite wa ikenai] or [definitely
forbidden]. However, [beki dewa nai] is stronger and formal. [beki demo nai] means [can be done, but it is not a
must]. [nai beki] is used main with the form such as [?V-ru beki ka??V-nai beki ka]. In 1925, [beki hazu]
that uses double meaning are commonly used. And in the same year, there was no example using particles like
[no] or [mo]. Therefore, we can assume that the form did not use particles at that time.