Reading "プラチナデータ" by 東野圭吾.

Not clear on the meaning of:

> "俺、何度も彼女を殺しそうになった **もんな** " -
>
> "I often almost killed her ... (monna?)"

What is "monna"? I suppose "mono nara" ("if that thing"), but then I don't
understand the whole sentence - is it "If I often almost killed her"?
CC BY-SA 4.0
2013-10-23T04:53:08.900
13227
2020-12-29T21:14:53.770
2020-12-29T21:14:53.770
37097
4085
question
slang colloquial-language parsing
What is the meaning of もんな
I think that it comes from the grammar form [～もの +
だ](http://maggiesensei.com/2010/04/08/requested-
lesson-%E3%80%8C%E3%82%82%E3%82%93%E3%81%8B%E3%80%8D%E3%80%8C%E3%82%82%E3%82%93%E3%81%A0%E3%80%8D%E3%80%8C%E3%81%A0%E3%81%AA%E3%82%93%E3%81%A6%E3%80%8Dmonkamondadanante/).
Which when changed to casual becomes もんだ which then you could add a な to.

ものです-> もんだ->もんだな->もんな

I think this may be a usage of 'reason/explanation' version of ～もの, perhaps in
a sentence before or after the character is talking about why he had often
almost killed her?
CC BY-SA 3.0
2013-10-23T06:07:23.573
13228
2013-10-23T09:53:31.557
2013-10-23T09:53:31.557
3916
3916
13227
answer
It's a variation of entry 2イ here:

<http://dictionary.goo.ne.jp/leaf/jn2/219750/m0u/>

As Goo says, it's basically an exclamatory way to state a reason for
something, 「詠嘆の意をこめて理由を表す」. I don't have the context in this case, but I would
say that in most cases the meaning is approximately the same as

> 俺、何度も彼女を殺しそうになったからな

and I would give the English translation as roughly

> I did almost kill her several times, didn't I...
CC BY-SA 3.0
2013-10-23T09:40:08.513
13229
2013-10-23T09:40:08.513
1073
13227
answer
More than anything, it is a colloquial way of adding the nuance of
"retrospective confession or boasting" in my own words.
CC BY-SA 3.0
2014-03-20T09:37:12.380
14958
2014-03-20T09:37:12.380
13227
answer
It is similar to "right ?" Used by men The equivalent used by women would be
もんね

相手に自分の言ったことへの同意や、肯定を求める言い方です。 男性の言い方です。 女性であれば「〜もんね 」です。

Exemples

> 今日って寒いもんな。 It's cold today, right ?

Source: <https://hinative.com/ja/questions/1911840>
CC BY-SA 4.0
2020-12-29T15:54:07.563
83337
2020-12-29T16:23:32.257
2020-12-29T16:23:32.257
37097
37097
13227
answer