がちです/がちになる => A tends to become/happen/occur N2
Potential, Possibility
[中心「ちゅうしん」]に => With A as the center N2
Miscellaneous
に[違「ちが」]いない => Without a doubt, A N2
Information, Report
と、と、どちらが~ => Which is more C, A or B N4
Comparisons
はもちろん/はもとより => Although A is given/obvious; B N3
List, Examples
こそ~が => Although A is B N1
Contrast/Surprise
んがため => For the purpose of doing A N1
Reason, Result, Response
ことは~が => Although A is true, C N3
Contrast
たことがある => Have done A before N4
Situations and Experiences
たち => Plural form N5
Amount
ところが => Although A (was planned/expected), B (unexpected) N3
Contrast
どんなに~うが => No matter what A, no matter how A N1
Miscellaneous