切る/切れる/切れない => to do something completely to the end/unable to do; too much to finish/complete N3
[切「き」]れない => Can't finish/complete A N3
Potential, Possibility
切る => Give up, stop... N3
Happens next
せられたい => Please..., Let me... N3
Order
なれた => to be used to something N4
Repetition, habit
~をかわきりに(~を皮切りに)      => One after another; starting with ~ N1
なければ~た => If only it weren't... then... N4
Speculation
~ ば/たら~かもしれない => If only... then... N2
Regret
~ ば/たら~かもしれない => If...then maybe... N3
Condition (hypothetical condition)
これ/それ/あれ => this/that N5
Spatial relations
... るとか ... るとか => それとも... または N4
Demonstrate by example
~仮に...とすれば / としたら / とする => ~If..., suppose... N1
Condition (hypothetical condition)