In the sentence:

掟は ちゃんと教えないとね (okite wa chanto oshienai to ne)
[You must be taught the rules properly.]

I'd like to understand this pattern of using verb-nai-to(-ne). Thanks.


2 Answers 2


If you want to express obligation in Japanese, like X has to do Y or X must do Y in English, you have to say something like if X doesn't do Y, it's bad. The first part of that structure, the if X doesn't do Y is expressed by conjugating the verb in three possible ways. One of them is ない + と. For example, 教えないと means if X doesn't teach. Then you'd have to add something like いけない or ならない for the second part of the structure, the it's bad part. But in colloquial speech it's usually omitted. So saying I have to go is exactly the same as if I don't go.

Here you have a more detailed explanation.



as for the code/rule




Must teach (same as 教えないとだめ/教えないといけない/教えなければいけない etc...). I think this is the issue. Must in Japanese can come in various forms.


Full sentence translated might be something like this: The code must be told properly.

Adjusted the word from "teach" to "told" since it sounds better for me, but we don't know the actual context here.

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