ことにする => Decide to N4
Causative, Passive, Volitional
くする/にする => To make, to change into N5
Change, cause and effect
からすると => Considering A... N2
Considering, Concerning
すると => A. Right after, B N2
Time, Situation
たことにする => To do/act/pretend as if A N1
Will, Decision, Doing
ものとする => A is decided N1
Information, Report
[事「こと」]だ => A is necessary/good (offering advice/suggestion) N3
Needs, Requirement
[事「こと」]ができる => Be able to A; can do A, Can A; be possible to A; N4
Causative, Passive, Volitional
ずにすませる => Get something done without doing A N1
Miscellaneous
ようにする => Try to A, make sure to A N4
Causative, Passive, Volitional
[要「よう」]するに => A. In short/put simply, B N2
Adjectival, Descriptions
に[限「かぎ」]った[事「こと」]ではない => It's not limited to A, it's not only A N1
Degree/ Level/Amount