~からなる(成る)      => Consists of; formed to N2
も構わず => without caring; without worrying about ~ N2
も[構「かま」]わず => Without considering A N2
Considering, Concerning
最中に => while; during; in the middle of ~ N3
〜がさいご(が最後) => if you do... negative result N1
Decisive (resolute decision)
[最中「さいちゅう」] => In the middle of A N3
Time, Situation
たが[最後「さいご」] => Once A occurs, B happens N1
Information, Report