んがため => For the purpose of doing A N1
Reason, Result, Response
たことがある => Have done A before N4
Situations and Experiences
ことがある => There are times when A (occurs/exists) N4
Situations and Experiences
をはじめ/をはじめとする => For example, A N2
Lists, Examples
がっている => Want, like N4
Secondary Verb
うと~まいと,うが~まいが => Whether or not A (is/occurs) N1
Based/focused/depending on
がちです/がちになる => A tends to become/happen/occur N2
Potential, Possibility
がっている => Wants to A N3
Will, Decision, Doing
うが~うが => Whether A or B N1
Miscellaneous
と([思「おも」]う、[言「い」]う、[考「かんが」]える) => That A N4
Particles
ことは~が => Although A is true, C N3
Contrast
と、と、どちらが~ => Which is more C, A or B N4
Comparisons