~ている。 => Doing something temporarily. N5
Secondary Verbs
がっている => Want, like N4
Secondary Verb
ときている => Because of A N1
Reason, Result, Response
がっている => Wants to A N3
Will, Decision, Doing
ことになっている => Plan, rule, decide N2
Information, Report
あるいは => A or B N2
Lists, Examples
ていられない => Cannot continue to A N2
Needs, Requirements
なくてもいい => Don't have to A N4
Can, Should, Must
をおいて~ない => Other than A, B N1
(Not)only , (Not) even
に[決「き」]まっている => A is a given, A must be the case N2
Information, Report
てはいけない => May not A, must not A N4
Can, Should, Must
て[以来「いらい」] => After A, B (continuous action/condition N2
Information, Report