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I'm reading Minna no Nihongo (Chapter 15) and it says what I wrote in the question. I would think the negative would be 知っていません。

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I think you may need to double-check what the book is telling you. 知りません is negative, meaning "not know", and definitely not the past tense of 知ります. –  ジョン Jun 3 '12 at 1:23
Obviously typing just after you get up is bad. My mistake. I'll fix it. –  dotnetN00b Jun 3 '12 at 4:45
Hmm we don't say '知っていません'... (Why not? Hmm...) –  Chocolate Jun 3 '12 at 5:04
Perhaps the more salient question is, why is "know" expressed as 知っています, and what does 知ります really mean? –  Zhen Lin Jun 3 '12 at 7:32
知ります(知る) expresses a 動作/action and 知っています(知っている) expresses a 状態/state. Likewise, 知りません(知らない) should express a 動作 and 知っていません(知っていない) should express a 状態, but the fact is, we use 知りません(しらない) to express a 状態 and don't use 知っていません(知っていない). (Don't ask me why…). As for 知ります/知る, we'd use it to say more like 'realize/find/learn/tell' e.g.「いつも外国の出来事はBS放送で知ります。」「道を間違えたと知った。」「恥を知れ!」「その事件はたちまち世間の知るところとなる。」「噂が真実かどうかを知‌​るのは難しい。」 –  Chocolate Jun 3 '12 at 14:07
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2 Answers

up vote 13 down vote accepted

An English translation of the link provided by Tsuyoshi Ito:


It is common knowledge that the verb 知る is an exceptional verb amongst verbs that take the ~ている form. ~ている is appended to the subject-changing verb and expresses the state after the change; its corresponding negated form is expressed as ~ていない.

But contrary to expectations, the negated form of 知っている is often not 知っていない and is 知らない instead. To the best of my knowledge, I think there are few people who have come up with a theory and explained why this is.

One of these is 『新日本文法研究』 by Susumu Kuno.

But here, an analysis is done on the type of circumstances that 知っていない is used in by taking 知らない as a basis. So, the explanation is insufficient to deal with why 知る basically yields 知らない.

It's just that when 知らない and 知っていない are described and sorted out in terms of syntactic and semantic factors, then there will be clues to solving the problem of which form it appears in.

知る's Verb Group:

Firstly, before considering the issue there are things that we must first confirm. And that is the issue of where 知る lies amongst the many other verbs.

Normally the following are used to show the resultant state of a movement/action:

(1) Intransitive verb + ている
(2) Transitive verb + てある

There are 2 points here that we should be cautious about. First, not every verb appended with ている expresses a state. That is to say, 歩く is an intransitive verb but 歩いている expresses a progressive action.

We think of the verb that ている is appended to, and expressing a state, as an instance of a subject-changing verb, as opposed to the case of 歩く which is a traversal verb.

In cases where a transitive and intransitive verb pair exists, it is usually the intransitive verb that takes the role of the subject-changing verb.

Then it seems that the problem is not with the case of Verb+てある expressing a state. But when considering the verb 着る we realise that it is a case that that particular reasoning is not applied; although there are transitive verbs used - ~ヲ着る, there are also cases for which state is expressed when ている is appended - ~ヲ着ている. (ヲ instead of を to emphasise that it's a direct object and transitive verb).

We see that while there are traversal verbs in the class of transitive verbs we also have to think of transitive verbs as including a special group of verbs that expresses change in the subject. Within the object-taking particle ヲ, its verb's meaning has a traversal aspect. And, behaving in the same manner as 着る, it also possesses a subject-changing aspect because it changes its own state as well.

And because it possesses that subject-changing aspect, it can also express a state with ている appended similar to (1) and can also express progressive action similar to (2).


「今日は赤いセーターを着ている」(Resultant state)
「今、急いでセーターを着ている」(Progressive action)

That being the case, although the verb 知る is transitively used in the manner of ~ヲ知る, it can be said to be in the same verb group as 着る because it yields the form 知っている.

We think of the verb 知る possessing a subject-changing aspect of the transition from a state of "not having knowledge/information" to one of "having knowledge/information". Other than 知る, we have 覚える, 持つ, along with other verbs related to acquisition. And because we can consider them in the same way as we considered 着る, they are of the same group.

知る's Eccentricity:

Once done with categorising 知る, upon considering the ~ている form we see that we understand that the form ~ていない can be used for each of the ~ている forms of the similar verbs (覚える, 持つ, etc.) given above. Even though 知る exists in the special "traversal cum subject-changing" verb group, it is the only one for which the ~ていない form cannot be usually used. Then why is it that only 知る behaves in such an exceptional manner?

Regarding this fact, I think it is appropriate to think that it is due to the "semantic features" of the verb 知る and the image(= the way we perceive) that we have of 知る.

Why it is that 知らない is a basic form:

[1.] 知る's Semantic Feature & Diagrammatic Visualisation

Regard the displayed mental activity as the filling in of information when visualising the verb 知る:


For the illustration to show it, the verb 知る here is transitive. The mental activity is the filling in of information(denoted by ◯). So the sequence of events are as such:

(X) 知る: Filling in of information
(Y) 知った: Information has been filled
(Z) 知っている: What's left as a result(of X and Y)

[2.] 知らない's Semantic Feature and Diagrammatic Visualisation

By comparing the visualisation of 知らない with the above diagram, we can think of two cases represented as ア and イ as follows:


I'll start by concluding that:
- The situation as in ア represents the scenario of 知っていない.
- The situation as in イ represents the scenario of 知らない.

For subject-changing verbs, normally ア is connected with イ to have ~ていない expressed. But for 知る, it seems that the portion connecting ア with イ (denoted by =>) has been detached and individually dealt with instead.

So what does this mean? We will see what happens when we compare and consider 来る.
Using 知る's diagram, take people to be information and rooms as minds:


Suppose a friend enters a room you are in and asks:

(3) 「山田君、来ている?」
As an answer to (3), we can consider these two:

What's important here is that response (4B) has two sides. One perspective is that by saying ここにいない, it means 来ていない. While it states the state of (イ), it does so by taking the situation of (ア) as a premise.

Another perspective is that we can say 山田 is "いない" even though we do not know the state of 山田's coming(if he will/has come) simply because we were present right from the beginning. That is to say that (4B) does not negate 来た; which as a result means ここにいる. In fact, (4B) negates "existence". As for what it means to negate "existence", to put it in another way is to say that this room's "property" is that of "a place of which 山田 is non-existent".

It is a strange way to put it but the point is that it is not the aspect of a ~た→~ている transition.


(Pending translation...)

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This is a translation project for the benefit of those facing difficulty understanding directly from a Japanese source. Do contribute by helping to translate and correcting each other's translations. –  Flaw Jun 6 '12 at 9:16
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Answer 3 given to this question seems interesting. You might want to take a look at the original: 久野すすむ (1983) 新日本文法研究.

The original Q and A site (link provided by Tsuyoshi Ito. Switch to EUC-JP to display it correctly.)

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The cited answer is from this BBS. Maybe linking to this is better? –  Tsuyoshi Ito Jun 4 '12 at 3:20
I'll have to get the Google Translator right on that :) Thanks you two. It'll be an interesting exercise. One question though. Would an answer of that ... "magnitude" be better served in the community wiki? –  dotnetN00b Jun 4 '12 at 4:08
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