Page 652 - Makino,Tsutusi.DictionaryOfIntermediateJGrammar

578 wake de wa nai / wake ga nai
wa nai are not stated (e.g., KS(C) and Ex.(h)). For example, KS(C)
denies an implication of (I), the idea which is not stated in KS(C).
(1) $ER,Fblb>Z 2 ii%Fo
(It is important that the result is good.)

There is no reason why -; It is
ence of a reason to believe that impossible (for -) to -; cannot
s.0. does s.t. or is in some state, or [REL. ham ga nail
that s.t. takes place; or which
negates a possibility of s.o.'s
doing s.t. or being in some state,

+Key Sentences

1 (There is no reason why you cannot do such an easy job.) I

1 (It is impossible to be able to master Japanese that quickly.) I