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Usages of 〜naito
人気 の レストラン は 予約 を しない と 入れません。ninki no resutoran ha yoyaku wo sinai to iremasen.
You can’t enter a popular restaurant without a reservation.
仕事 に 行く 前 に コーヒー を 飲まない と。sigoto ni iku mae ni koohii wo nomanai to.
I have to drink coffee before going to work.
朝ご飯 を 食べない と、 部長 の 長い 話 に 集中 できない。asagohan wo tabenai to, butyou no nagai hanasi ni syuutyuu dekinai.
If I don't eat breakfast, I can't concentrate on the manager's long talk.
彼女 は 昼寝 を しない と 具合 が 悪く なる みたい。kanozyo ha hirune wo sinai to guai ga waruku naru mitai.
If she doesn’t take a nap, she seems to feel unwell.
夏 は 湿度 が 高い と、 エアコン を つけない と 眠れません。natu ha situdo ga takai to, eakon wo tukenai to nemuremasen.
In summer, when the humidity is high, I can’t sleep without turning on the air conditioner.
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Japanese verbs conjugate based on tense, politeness, and mood. For example, the polite present form adds ‑ます to the verb stem, while the past tense uses ‑ました. Unlike English, Japanese verbs don't change based on the subject — the same form works for "I", "you", and "they".
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