[合「あ」]う => To do A together/mutually N4
Secondary Verb
てしまう => Did something N4
Secondary Verb
~ましょう。 => Let's (together), Shall I/we…? N5
Verb suffixes
でしょう => I think... Probably.., I wonder if... N5
Miscellaneous
[使「し」][役「えき」][受「う」]け[身「み」] => Imperative N4
Causative, Passive, Volitional
わ => Very, so, already N5
Particles
[極「きわ」]み/[極「きわ」]まりない => Extremely A N1
Degree/ Level/Amount
てしょうがない/てしかたがない => Very A; Really A; Extremely A N2
Degree, Level, Amount
[中心「ちゅうしん」]に => With A as the center N2
Miscellaneous
わりに => Considering A, B N2
Considering, Concerning
し(~し) => and ... N4
Cause and Effect
わりに => Considering A, B (unexpected) N3
Considering, Concerning