ては~ては => repetitive situations/actions N2
ては => if N3
Condition (hypothetical condition)
て(は)はじめて => not until; only after (first time) N3
~にしてはじめて      => since at ~ N1
ていては => If one keeps doing something N3
Emphasize
~ひいては => by extension N1
Add
〜にいたっては (に至っては) => when it comes to; as for ~ N1
Extreme level
ては => whenever; if; when~; repetitive action N3
Description
にかかっては => For... N1
Necessity, obligation
といっては => If say... N2
Evaluate
はさておき => setting aside ~ N2
Trend
ては[初「はじ」]めて => Only after A did (I) B N3
Time, Situation