[中心「ちゅうしん」]に => With A as the center N2
Miscellaneous
はもちろん/はもとより => Although A is given/obvious; B N3
List, Examples
[尊敬語「そんけいご」] => Respectful form of A N4
Honorifics
たち => Plural form N5
Amount
がちです/がちになる => A tends to become/happen/occur N2
Potential, Possibility
[謙譲語「けんじょうご」] => Humble form of A, humble form of する verbs N4
Honorifics
うち/ないうち => While A is the case, B; While A is occuring, B, While A is not occuring, B N3
Conditional, While
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
ないと,なくちゃ => Must do A N3
Needs, Requirement
に[違「ちが」]いない => Without a doubt, A N2
Information, Report
んです => Because, by… N4
Situations and Experiences
[最中「さいちゅう」] => In the middle of A N3
Time, Situation