~ました/~ませんでした => Polite, past form of verb N5
Verb suffixes
に[越「こ」]したことはない => It's better if A, it's better if it's A N1
Comparison/ Exchange
としたところで、としたって => Even from the perspective of A; Even in the case of A N1
Considering/ Concerning
てしまう => Did something N4
Secondary Verb
までだ/までのことだ => Only A (will be done) N1
(Not)only , (Not) even
まだしも => A is acceptable, N2
Comparison, Exchange
ただし => A。However, B N2
Contrast,Surprise
ところだった => About to… N3
Will, Decision, Doing
しまつだ => Denotes negative results A N1
Reason, Result, Response
もし~たなら => If A … N3
Conditional, While
にしたら => From A's perspective, N2
Considering, Concerning
~ましょう。 => Let's (together), Shall I/we…? N5
Verb suffixes