をはじめ/をはじめとする => For example, A N2
Lists, Examples
をもとに/をもとにして => A as a basis for B N2
Based, Focused, Depending on
ふりをする => To pretend to (be) A N3
Adjectival, Description
を[機「き」]に => Use A as an opportunity N1
Time, Situation
をかわきりに => Starting with A N1
Miscellaneous
を[余儀「よぎ」]なくされる => Must do A N1
Will, Decision, Doing
をよそに => Without regards to A, Ignoring A, Despite A N1
Considering/ Concerning
ようになる/なくなる => Become… N3
Time, Situation
を[境「さかい」]に => A is set as a border/limit N1
Degree/ Level/Amount
ざるを[得「え」]ない => Only A is left to do/can be done N2
(Not)only, (Not) even
くする/にする => To make, to change into N5
Change, cause and effect
を[頼「たよ」]りに => With the help of A; thanks to A N2
Based, Focused, Depending on