と[思「おも」]いきや => Even though A (was thought/expected), different result B N1
Contrast/Surprise
や、やいなや => As soon as A, B N1
Time, Situation
やすい => A is easy to do N4
Verb Suffixes
やら~やら => A, B, ... (examples from a list) N2
Lists, Examples
と([思「おも」]う、[言「い」]う、[考「かんが」]える) => That A N4
Particles
てやまない => To (always) think/feel/hope/etc. A N1
Will, Decision, Doing
やる => Give B to A N4
Give and take advice
てやる => Do for someone N4
Give and take advice
[極「きわ」]み/[極「きわ」]まりない => Extremely A N1
Degree/ Level/Amount
が[早「はや」]いか => As soon as A occurred, right after A N1
Time, Situation
だろうと[思「おも」]う => I think probably A N4
Sentence Endings
ようと[思「おも」]う => I think I will A N4
Causative, Passive, Volitional