それはそうと => By the way N2
Miscellaneous
ようとする => Be about to A, (about to) try to A N4
Causative, Passive, Volitional
からすると => Considering A... N2
Considering, Concerning
すると => A. Right after, B N2
Time, Situation
ことにする => Decide to N4
Causative, Passive, Volitional
ものとする => A is decided N1
Information, Report
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
くする/にする => To make, to change into N5
Change, cause and effect
そうにない => N2
Potential, Possibility
そうだ => Seem, like… N4
Situations and Experiences
たことにする => To do/act/pretend as if A N1
Will, Decision, Doing