Jisho

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Expressions (phrases, clauses, etc.), I-adjective (keiyoushi)
1. cannot do without something; indispensable; absolutely necessaryUsually written using kana alone, See also 無い
  • まずだいいちまず第一に
  • わたし私たち
  • それ
  • はじ始める
  • しほんきん資本金
  • なくてはならない
In the first place, we must have capital to begin it with.
Expressions (phrases, clauses, etc.), I-adjective (keiyoushi)
2. have to doUsually written using kana alone, See also なければならない, after negative base of verb
  • ほとんど
  • から
  • なので
  • ガソリン
  • 入れ
  • なくてはなりません
I need to put some gas in the car, as it's almost empty.

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