~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
のだったら => If truly... N3
Description
のであった => So...(Exclamation) N2
Exclamatory
またの… => again, moreover, in addition N3
Necessity, obligation
たもの => Used to N3
Sentence Endings
たものではない => Impossible N2
Evaluate
ば~のに/たら~のに => would have; should have; if only ~ N3
~んがため(に)/~んがための      => in order to ~ N1
...のだった => And yet, Even so, Nevertheless N2
Exclamatory
…と…た(ものだ) => As soon as ... then N4
Repetition, habit
ただ~のみだ => Only A N1
(Not)only , (Not) even
の+ [至「いた」]り => Very A N1
Degree/ Level/Amount