たちまち  => Immediately, Quickly, Suddenly, In a moment or flash N2
Status
てしまった => to finish N4
Description
以来 => since; henceforth ~ N2
~てまで/までして => even; will go far so as to ~ N2
てしまう => Did something N4
Secondary Verb
にもまして => more than…; above ~ N1
以下 => As follows, below N3
Standard
てしまっていた => Did by accident / finished N4
Completed
つきましては => about; concerning; regarding N2
Cause, reason
以上 (の) => Just mentioned above N1
Standard
またしても => again; once again; yet again N3
Repetition, habit
と言っていました => Someone said... N4
Speaking