こそ~が => Although A is B N1
Contrast/Surprise
んがため => For the purpose of doing A N1
Reason, Result, Response
んばかり => Seems like A, Seems as if A N1
Adjectival, Descriptions
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
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
ことがある => There are times when A (occurs/exists) N4
Situations and Experiences
より~の[方「ほう」]が~ => B is more C than A N4
Comparisons
はもちろん/はもとより => Although A is given/obvious; B N3
List, Examples
と([思「おも」]う、[言「い」]う、[考「かんが」]える) => That A N4
Particles
てくれてありがとう => Thank you for doing A N4
Honorifics