過去形 => Past form N5
Conjugate verbs
~のは…ぐらいのものだ => only (emphasis) N1
Limit
どのくらい => how long N5
の[上「うえ」]では => As… N4
Situations and Experiences
~といえども => even if; even though; despite ~ N1
など~ものか => No way... N3
Position, perspective
必ずしも~とは限らない => Not necessarily; not always N3
もらえまいか => Help... N2
Benefit
にとどまらず => Not only A (but also ...) N1
(Not)only , (Not) even
~にとどまらず => not limited to; not only… but also ~ N1
Simultaneously
どの => which N5
のみならず/のみか => not only; besides; as well as ~ N2