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
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
が[早「はや」]いか => As soon as A occurred, right after A N1
Time, Situation
と[思「おも」]いきや => Even though A (was thought/expected), different result B N1
Contrast/Surprise
あまり~ない => Not very ~ N5
Amount
の+ [至「いた」]り => Very A N1
Degree/ Level/Amount
ことはない => Not necessary N3
Needs, Requirement
かぎり/ないかぎり => While A is the case/still true N2
Conditional, While