Page 88 - Makino,Tsutusi.DictionaryOfIntermediateJGrammar

14 bekida
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- 2. The prenominal form of bekida (i.e., the form which modifies a noun)
==
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.
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.
.
'Bg
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. - is beki. (See KS(E) and Exs.(g) - (i).)
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.
=
3. Bekida usually expresses the idea that s.0. / s.t. should do s.t. or be in
some state because it is his 1 her responsibility or duty, because it is the
right thing or a good thing to do, or because it is the right state or a good
state to be in. (See KS(A) - (E), Exs.(a) - (f) and (i).)
4. Bekida also expresses the idea that S.O. is expected to do s.t. (See Exs.
(g) and (h1.1
5. Adj(i)stem + ku aru bekida, as in (I), is a possible form but this form is
not commonly used.
*.he tL ::* b*,
(1) @CL+B~~TQJL\GL~<~~B~~~:,
(Even if one's body gets old, one's mind should be young.)
6. Bekida is not used when the speaker is younger than the hearer or lower
than the hearer in status. For example, (2) is not appropriate in the given
situation.
(2) [From a student to his 1 her professor]
?X&, +fi~i~~~~:~&&d~~~
(Professor, you should forget it.)
[Related Expressions]
I. Mono da also expresses the idea that one should do s.t. as one's duty,
as in [I].
if<+kbr ehl~i
w
[I] qw-a~ a .tar:,
(Students should study.)
However, mono da is used only in a generic statement to express a
social norm. Thus, in a specific situation, as in [2], it cannot be used.
[2] ZG~%S&bS I43 / *.tOll E,
(You should study.)
(+mono (da) (DBJG: 257-61))