を[機「き」]に => Use A as an opportunity N1
Time, Situation
に[難「むずか」]くない => It's not hard to A N1
Adjectival, Descriptions
かも[知「し」]れない => Might A, maybe A, perhaps A N3
Sentence Endings
ずにすむ => Not doing A will suffice; Can get by without doing A N1
Need/Requirements
[向「む」]け => Made for A, intended for A N2
Adjectival, Descriptions
を[契機「けいき」] => As a good opportunity A, (do) B N2
Information, Report
へ => Go to N, head to N , Often followed by verbs like 行く/いく, 来る/くる, 向かう/むかう… N5
Particles
に[沿「そ」]って/に[沿「そ」]い/に[沿「そ」]う/に[沿「そ」]った => Along with A; In line with A N2
Based, Focused, Depending on
に[反「はん」]して/に[反「はん」]し/に[反「はん」]する/に[反「はん」]した => In contrast to A N2
Contrast,Surprise
に => In, at N N5
Particles
に[基「もと」]づいて/に[基「もと」]づき/に[基「もと」]づく => Based on A N2
Based, Focused, Depending on
そうにない => N2
Potential, Possibility