てくる => To come, to continue N4
Secondary Verb
てくれる => Do for someone. N4
Give and take advice
て[下「くだ」]さる => Do for someone N4
Give and take advice
~てください => Please do ~ N5
Asking and Telling
て[頂「いただ」]く => Do for N4
Give and take advice
なくてもいい => Don't have to A N4
Can, Should, Must
へ => Go to N, head to N , Often followed by verbs like 行く/いく, 来る/くる, 向かう/むかう… N5
Particles
~ている。 => Doing something temporarily. N5
Secondary Verbs
がっている => Want, like N4
Secondary Verb
ようになる/なくなる => Become… N3
Time, Situation
ときている => Because of A N1
Reason, Result, Response
がっている => Wants to A N3
Will, Decision, Doing