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I've often seen and heard the expression `〜と知る（知っている）`. When I think about it,
it makes sense in the context of the quoatation-と, like with `〜と言う` or `〜と思う`.
It seems like it means "Know **that** 〜".

> ミユキちゃんが結婚したと知ってる？ → Did you know that Mikyuki got married?

However, the few times I've tried to use it, I was told I was using it
incorrectly, and that I should instead use `〜こと／のを知る`.

> ミユキちゃんが結婚したこと／のを知ってる？

So what are the rules for using `〜と知る`? Do `〜と知る` and `〜こと／のを知る` have
different meanings and rules (they seem the same to me)?

* * *

**Update** : I've found quite a few examples from my Bible. It's the `新共同訳`
version, and I was able to [search it
here](http://www.bible.or.jp/vers_search/vers_search.cgi). I searched for
`～と知る`, `～と知って`, and `～と知った`. Here are a couple examples:

>   * 「群衆は、イエスも弟子たちも **そこにいないと知る** と、自分たちもそれらの小舟に乗り、イエスを捜し求めてカファルナウムに来た。」 －
> ヨハネによる福音書 / 6章 24節
>   * 「けれども、人は律法【りっぽう】の実行ではなく、ただイエス・キリストへの信仰によって **義とされると知って**
> 、わたしたちもキリスト・イエスを信じました」 － ガラテヤの信徒への手紙 / 2章 16節
>   * 「ヨナタンは言った。『そのような事は決してない。父があなたに危害を加える **決心をしていると知ったら** 、必ずあなたに教えよう。』」 －
> サムエル記上 / 20章 9節
>
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2012-04-19T19:54:26.057
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question
grammar nuances particle-と
How do you use 〜と知る?
The examples are very interesting. It looks like, whenever `と知る` can be used,
it means "find out" rather than "know". Another way to say this is, whenever
`と知る` can be used, you can replace the verb with `分かる`. With "find out", you
cannot have duration, in other words, you can say:

> I knew that theorem **for two days** , (but I forgot it).

but you cannot say

> * I found out that theorem **for two days**.

the aspectuality matters. Applying this to Japanese, you can use `と知る` with a
simple tense (under which `知る` means "find out"):

> 風の知らせで、みゆきちゃんが結婚したと知った。

but not with perfect (under which `知る` means "know"):

> * 昨日から、みゆきちゃんが結婚したと知っている。

And indeed this makes sense because `と` (similar to "to") implies the goal of
change of location/state of something. Finding out something is a change of
state, but knowing something is not.
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2012-04-20T03:47:42.867
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> ミユキちゃんが結婚したと知ってる？

This sentence is grammatically correct but not natural.

> ミユキちゃんが結婚した **って** 知ってる？

This one is natural. In modern Japanese conversation, it does 促音便化 in this
case. But, the old style is also still in use even in conversation.

> ミユキちゃんが結婚したと知らされた。

So, here is the problem. "知ってる?" is quite informal, but "したと" is quite formal.
That difference makes us uncomfortable.
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