ずじまい => Haven't done A N1
Will, Decision, Doing
[極「きわ」]み/[極「きわ」]まりない => Extremely A N1
Degree/ Level/Amount
や、やいなや => As soon as A, B N1
Time, Situation
てやまない => To (always) think/feel/hope/etc. A N1
Will, Decision, Doing
に[加「くわ」]えて/に[加「くわ」]え => In addition to A (not only A), B as well. N2
Lists, Examples
を[余儀「よぎ」]なくされる => Must do A N1
Will, Decision, Doing
も[構「かま」]わず => Without considering A N2
Considering, Concerning
てもかまわない => No problem N4
Can, Should, Must
に[応「おう」]じて(は)/に[応「おう」]じ(た) => In response/reply to A, In line with A; That fits with A N2
Based, Focused, Depending on
やら~やら => A, B, ... (examples from a list) N2
Lists, Examples
てしまう => Did something N4
Secondary Verb
うと~まいと,うが~まいが => Whether or not A (is/occurs) N1
Based/focused/depending on