しか~ない => Only , no more than , There's only N5
Amount
てしょうがない/てしかたがない => Very A; Really A; Extremely A N2
Degree, Level, Amount
~かもしれない => Might A, maybe A, perhaps A N4
Sentence Endings
かも[知「し」]れない => Might A, maybe A, perhaps A N3
Sentence Endings
ずにはおかない/ないではおかない => Will definitely A, N1
Will, Decision, Doing
て[頂「いただ」]けないでしょうか? => Could you please A for me? N4
Secondary Verb
かねない => Afraid that N2
Potential, Possibility
にほかならない => Only A N2
Reason, Result, Response
ゃしない => Don't/Doesn't A (at all) N1
Will, Decision, Doing
[決「けっ」]して~ない => Won’t, isn’t N3
Will, Decision, Doing
てかなわない => A is a problem N2
Adjectival, Descriptions
うではないか/うじゃないか => Let's go A; Why don't we A? N2
Miscellaneous