Sorry if this is a really open-ended question, but one thing occurred to me
when I was asking a prior question here; are there any particular grammatical
errors frequently made by _native_ Japanese speakers?

For example, in English there are quite a few obvious mistakes that native
speakers make - `your` vs. `you're` and `me and Sally went...` rather than
`Sally and I went...` and often non-native speakers of English are better at
distinguishing between them than native speakers.

Is there any such Japanese grammar that is commonly used incorrectly by native
speakers?

I am more interested in common mistakes than obscure mistakes; mistakes where
one would think that a native speaker should know better.
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2012-11-21T15:49:05.727
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grammar
Are there any common grammatical errors made by native Japanese speakers?
If some construct is common among native speakers, is it a grammatical error,
or an artifact of a shared dialect? It's an error in the prescriptive sense,
in that it is contrary to some preferred dialect that is promulgated by
schools and institutions.

Here is an example: using 全然 (zen zen, _[not] at all_ ), in the positive sense
( _totally_ ).

"昨日, 全然楽しかったよ！” (Kinou, zen zen tanoshikatta, yo! _Yesterday was totally fun!_
)
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2012-11-21T21:57:56.813
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I'm not sure if it is common, but I asked a [question
once](https://japanese.stackexchange.com/questions/5856/%E3%81%AB%E9%85%8D%E6%85%AE%E3%81%AF%E3%81%84%E3%82%8A%E3%82%87-vs-%E3%82%92%E9%85%8D%E6%85%AE%E3%81%AF%E3%81%84%E3%82%8A%E3%82%87)
about something I often saw: (I think these types of mistakes are common
though when you mix up to words)

> 環境を配慮した家 <\-- Should be に not を

Using たり only once
([reference](http://www.nhk.or.jp/bunken/summary/kotoba/gimon/154.html)):

> ×本を読んだり、手紙を書く暇もありません。
>
> →○本を読んだり、手紙を書いたりする暇もありません。

Using two words that mean the same thing in a row (very common):

> まず初めに
>
> 今現在

Using 申し訳ない as 申し訳ありません or 申し訳ございません. Technically 申し訳ない is a 形容詞.

なので at the beginning of a sentence.

すいません instead of すみません (perhaps more of a spoken thing).

こんにちわ instead of こんにちは
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2012-11-22T00:38:03.013
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Don't know about native speakers, but I know that a commonly made mistake is
to use a grammatical structure such as ~と思う without the necessary だ if
preceded by a noun or な adjective.
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2013-05-29T09:04:10.177
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answer