[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
[可能系「かのうけい」] => Can, be able to, be possible to N4
Can, Should, Must
を[契機「けいき」] => As a good opportunity A, (do) B N2
Information, Report
を[機「き」]に => Use A as an opportunity N1
Time, Situation
なければならない => Must do A; have to A N4
Can, Should, Must
かれ~かれ => A or B N1
Lists, examples
かけの/かけだ => B in the middle of A; half-A B N3
Time, Situation
とあれば => If A N1
Conditional, While
それと => A, and B N3
List, Examples
それとも => A? or B? N3
List, Examples
だけど => A, however/but B N3
Contrast