[受「う」]け[身「み」] => Passive, be V-ed. N4
Causative, Passive, Volitional
[使「し」][役「えき」][受「う」]け[身「み」] => Imperative N4
Causative, Passive, Volitional
[決「けっ」]して~ない => Won’t, isn’t N3
Will, Decision, Doing
てはいけない => May not A, must not A N4
Can, Should, Must
わけにはいかない => Must not A, Must A N3
Needs, Requirement
なくてはいけない => Must do A; have to A N4
Can, Should, Must
[尊敬語「そんけいご」] => Respectful form of A N4
Honorifics
を[契機「けいき」] => As a good opportunity A, (do) B N2
Information, Report
なければならない => Must do A; have to A N4
Can, Should, Must
て[頂「いただ」]けないでしょうか? => Could you please A for me? N4
Secondary Verb
かけの/かけだ => B in the middle of A; half-A B N3
Time, Situation
[可能系「かのうけい」] => Can, be able to, be possible to N4
Can, Should, Must