のを忘れた => to forget; to leave carelessly; to be forgetful of; to forget about N4
なければならない/なくてはならない/なければいけない/なくてはいけない/なければだめ/なくてはだめ => must N5
ないでくれ => please don't N4
Ban
…となれば => if that happens N2
Deduce
なれた => to be used to something N4
Repetition, habit
これ/それ/あれ => this/that N5
Spatial relations
まだV-られない => Not yet ~ N4
Ability
~になれる      => to be used to, become N3
Achievements
~と(も)なると/と(も)なれば => ~Just, whenever, once N1
Condition (hypothetical condition)
なければ ~ない => must do something; have to do something N4
Conditions (necessary conditions)
かもしれない => might; perhaps; indicates possibility N4
なければ~た => If only it weren't... then... N4
Speculation