ことのないように => So as not to A N1
Will, Decision, Doing
あっての => Because of A (strong emphasis), B N1
Reason, Result, Response
だけのことはある => It's not surprising that A, A is no surprise, A is no wonder N2
Adjectival, Descriptions
[際「さい」]して/に([際「さい」]し)/に[際「さい」]しての => At the time of A (which starts now).. N2
Time, Situation
ことなしには => Without doing A, B N1
Conditional, While
までだ/までのことだ => Only A (will be done) N1
(Not)only , (Not) even
の+ [至「いた」]り => Very A N1
Degree/ Level/Amount
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
なりに,なりの,それなり => In A's own way, in a(n) A way N1
Adjectival, Descriptions
に[答「こた」]えて => In response to A N2
Reason, Result, Response
ところを/ところに/ところへ => At time/situation A N2
Information, Report
たことがある => Have done A before N4
Situations and Experiences