の下で/の下に => under; with ~ N2
以下 => As follows, below N3
Standard
最中に => while; during; in the middle of ~ N3
〜がさいご(が最後) => if you do... negative result N1
Decisive (resolute decision)
のが下手 => to be bad at doing something N5
て[下「くだ」]さる => Do for someone N4
Give and take advice
[最中「さいちゅう」] => In the middle of A N3
Time, Situation
たが[最後「さいご」] => Once A occurs, B happens N1
Information, Report
[以下「いか」] => Less than A, under/below A (amount) N1
Degree/ Level/Amount
て下さいませんか => Please do A (polite) N5
Asking and Telling
[下「くだ」]さる => Give B to A (A is you, your friends, your family, etc.) N4
Give and take advice