合う => do something together N3
[合「あ」]う => To do A together/mutually N4
Secondary Verb
~こと請け合い => I guarantee ... N1
Happens next
べつに => separately N2
Description
場合(は) => in the event of; in the case that ~ N4
~ににあわず (に似合わず ) => ~Different from N1
Evaluate
~べし => need, of course N1
Of course
とでもいうべき => It must be said, it can be said N1
For example, simile
べき => should do; must do ~ N3
べつだんの => particular; special N2
Description
なるべく => as much as possible N2
Limit, limit
~べくもない      => cannot possibly be ~. N1