わけにはいかない => Must not A, Must A N3
Needs, Requirement
て[頂「いただ」]けないでしょうか? => Could you please A for me? N4
Secondary Verb
なくてはいけない => Must do A; have to A N4
Can, Should, Must
ずにはおかない/ないではおかない => Will definitely A, N1
Will, Decision, Doing
てはいけない => May not A, must not A N4
Can, Should, Must
[決「けっ」]して~ない => Won’t, isn’t N3
Will, Decision, Doing
なければならない => Must do A; have to A N4
Can, Should, Must
かねない => Afraid that N2
Potential, Possibility
にほかならない => Only A N2
Reason, Result, Response
うではないか/うじゃないか => Let's go A; Why don't we A? N2
Miscellaneous
てかなわない => A is a problem N2
Adjectival, Descriptions
かいもなく => Even though A, N2
Contrast,Surprise