や、やいなや => As soon as A, B N1
Time, Situation
やら~やら => A, B, ... (examples from a list) N2
Lists, Examples
やる => Give B to A N4
Give and take advice
てやる => Do for someone N4
Give and take advice
やすい => A is easy to do N4
Verb Suffixes
に[応「おう」]じて(は)/に[応「おう」]じ(た) => In response/reply to A, In line with A; That fits with A N2
Based, Focused, Depending on
てやまない => To (always) think/feel/hope/etc. A N1
Will, Decision, Doing
うではないか/うじゃないか => Let's go A; Why don't we A? N2
Miscellaneous
てしまう => Did something N4
Secondary Verb
が[早「はや」]いか => As soon as A occurred, right after A N1
Time, Situation
へ => Go to N, head to N , Often followed by verbs like 行く/いく, 来る/くる, 向かう/むかう… N5
Particles
と[思「おも」]いきや => Even though A (was thought/expected), different result B N1
Contrast/Surprise