~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
…とばかりおもっていた => Thought that ... N3
Speculation
てっきり...と思う => surely; certainly; without a doubt N3
~ぶんには(~分には) => as long as ~ N1
をかわきりに => Starting with A N1
Miscellaneous
きり => Only A N3
Degree. Level, Amount
~をかわきりに(~を皮切りに)      => One after another; starting with ~ N1
きり => only; just; since; after ~ N2
きり => only; just; since; after ~ N3
ではなかったか => Wasn't it ...? N4
Exclamatory
ではなかったか => Wasn't it? N4
Speculation
かりに…たら/…ば => If..., suppose... N3
Condition (hypothetical condition)