nakereba naranai なければならない
Predicative phrase (expressing obligation/necessity of the speaker) meaning: have to.
Nakereba may be replaced with nakutewa or the informal nakya.
1. After the stem of nai-form of verb
九時までに会社に行かなければなりません。
Ku ji made ni kaisha ni ikanakereba narimasen.
I have to go to the company by nine o'clock.
もっと単語を覚えなければなりません。
Motto tango o oboenakereba narimasen.
I have to learn more words.
2. After ku-form of adjective
アパートは駅にもっと近くなければならない。
Apaato wa eki ni motto chikaku nakereba naranai.
The apartment house needs to be much closer to the station.
3. After (adjectival) noun + de
話は論理的でなければならない。
Hanashi wa ronriteki de nakereba naranai.
The speech needs to be logical.
-> See also: nakereba ikenai, nakutemo yoi, neba naranai
Nakereba may be replaced with nakutewa or the informal nakya.
1. After the stem of nai-form of verb
九時までに会社に行かなければなりません。
Ku ji made ni kaisha ni ikanakereba narimasen.
I have to go to the company by nine o'clock.
もっと単語を覚えなければなりません。
Motto tango o oboenakereba narimasen.
I have to learn more words.
2. After ku-form of adjective
アパートは駅にもっと近くなければならない。
Apaato wa eki ni motto chikaku nakereba naranai.
The apartment house needs to be much closer to the station.
3. After (adjectival) noun + de
話は論理的でなければならない。
Hanashi wa ronriteki de nakereba naranai.
The speech needs to be logical.
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