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I heard the following phrase spoken in Osaka:

> そう泣いてばかりでは **わかりゃあせん**

Is it regional? Does it have any nuance to it?

Is it a more regular pattern or just an intonation of this particular phrase?

(Googling shows some わかりゃせん, but it also seems a spoken dialect; anyway I
could not find any dictionary reference)
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2016-02-25T13:00:57.867
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2016-02-26T00:26:19.127
2016-02-25T14:30:23.027
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question
colloquial-language particle-は dialects negation contractions
What is the nuance of わかりゃあせん vs regular わかりません?
_tl;dr_ It is regional speaking, and former has emphasis on it where latter
doesn't.

Here's what I found. This wording can be found in
[三河弁](https://en.wikipedia.org/wiki/Mikawa_dialect). Although this is spoken
in Aichi, I (from Hyogo) do speak this sometimes.

In this dialect, **〜や(あ)せん** in the regular form is **〜や しない**.  
So **わかりゃあせん** in regular form is **わかりやしない**.

Now, **わかりません** vs **わかりやしない(わかりやしません)** is slightly different.

We'll break わかりやしない into words...

> わかり/や/し/ない

where **や** is very interesting. _や_ is actually `Engagement particle` **は**
turned into casual speaking.

(Cf.
<http://lang-8.com/81029/journals/227496511358989883065326511567758757626>)

So that being said, this phrase is originally **わかりはしない** , whose _basic
meaning_ is "わからない". This **は emphasizes preceding word**. So it can be
interpreted as " **I(we)'ll _never_ know.**"

What about わかりません? It's simply " _I don't know_ ," no emphasis put. That's the
difference between them.
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answer