[合「あ」]う => To do A together/mutually N4
Secondary Verb
であれ,であろうと => Even A, Both A and B N1
(Not)only , (Not) even
にあたって/にあたり => At the time of A (which starts now).., on the occasion of A N2
Time, Situation
たことがある => Have done A before N4
Situations and Experiences
たあげく => After A, B was the final/end result N2
Reason, Result, Response
にはあたらない => There's no need to A, N1
Need/Requirements
はどうあれ => Whatever the A, regardless of the A N1
Based/focused/depending on
てくれてありがとう => Thank you for doing A N4
Honorifics
といったらない/といったらありはしない => Extremely A, Very A, A beyond description N1
Degree/ Level/Amount
た[方「ほう」]がいい => It would be better to A N4
Can, Should, Must
といえば/というと/といったら => N3
Considering, Concerning
とあれば => If A N1
Conditional, While