や、やいなや => As soon as A, B N1
Time, Situation
ないと,なくちゃ => Must do A N3
Needs, Requirement
ゃしない => Don't/Doesn't A (at all) 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
うではないか/うじゃないか => Let's go A; Why don't we A? N2
Miscellaneous
ことになっている => Plan, rule, decide N2
Information, Report
に[決「き」]まっている => A is a given, A must be the case N2
Information, Report
と[思「おも」]いきや => Even though A (was thought/expected), different result B N1
Contrast/Surprise
ときている => Because of A N1
Reason, Result, Response
がっている => Want, like N4
Secondary Verb
てやまない => To (always) think/feel/hope/etc. A N1
Will, Decision, Doing