~ばよかった/~たらよかった/~ばよかったのに/~たらよかったのに => If only N3
…のではなかったか => Wasn't it…? N2
Doubt
…のではなかったか => ..., isn't it (Criticism) N2
Criticize
まさか...とはおもわなかった => never thought that N3
Surprised
にわたって => throughout; over a period of ~ N2
のだったら => If truly... N3
Description
のであった => So...(Exclamation) N2
Exclamatory
にわたって/にわたり => Over the course of A (continuous action), Throughout A N2
Time, Situation
かたわら => While doing A, (B) N1
Information, Report
とはうってかわって => unlike; totally different; very different from ~ N1
Reach level
...のだった => And yet, Even so, Nevertheless N2
Exclamatory
ではなかったか => Wasn't it ...? N4
Exclamatory