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
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
でしょう/だろう => right?, isn't it?, correct? N4
ましょう => let's ~; shall we ~ N5
そうして => and, like that N3
Happens next
どうも ... そうだ/ ようだ/ らしい => It seems, probably N3
Speculation
でしょう/でしょうか => Is that right? ask a question in a polite way N5
てもよろしいでしょうか => May I... N4
Allow
てしまう => Did something N4
Secondary Verb