…たりしたら/しては => ... Such as N3
Demonstrate by example
~んがため(に)/~んがための      => in order to ~ N1
ずくめ => completely; entirely; nothing but ~ N1
ひとつには…ためである => Partly because of ... N3
Cause, reason
ため => In order to, for N4
Purpose, target
なければならない/なくてはならない/なければいけない/なくてはいけない/なければだめ/なくてはだめ => must N5
ため(に) => For, because… N4
Cause and Effect
めったな => hardly; rarely; seldom N2
Ban
をはじめ/をはじめとする => For example, A N2
Lists, Examples
ずくめ => Completely A, entirely A N1
Degree/ Level/Amount
をはじめ => for example; starting with ~ N2
たり~たり => do such things as A and B N5