ーているの construction and use of もの


Take the following sentences. The context is, one girl talks to another after
having been caught examining someone's collection of stuffed animals. (Very
out of character for the second girl.) The first girl is the only one talking:

The first sentence is easy, though I don't know the purpose of the squiggly
line:

> 可愛いでしょ〜

Not, sure why the second is in カタカナ, but I believe it just clarifies the first
sentence:

> ソレ〜

I'm guessing the の at the end of the third just softens the sentence, but I'm
not sure. I also don't know why 飾る is in gerund form, or whether ーてるの is doing
something else entirely. If I had to translate, I would say: "I will go shop
and decorate(ing?)"

> 私が時々買ってきて飾ってるの〜

The fourth sentence would seem to mean "Everyone is gathering things as well,
but..."

> みんなが持ち寄ってるものもあるケド・・・

Or maybe the 〜 aren't meant to break up the sentence?

_Edit_

My questions are:

What does the ーてるの construction do?

How does the gerund work in the example (-ing doesn't seem to fit)?

Does the last sentence refer to people gathering for something, or gathering
things?

What is the tilde doing?




「飾ってるの〜」 is a casual colloquialism of 「飾っているのです」.

  * ～てる is short for ～ている (progressive form), denoting her habit in this context.
  * Sentence-end の is common in casual girlish speech. Semantically, this is the same as other affirmative expressions like 「～のです」「～のだ」, or questions like 「～のですか」「～のか」, depending on the intonation. 

>     * そうなの！ That's it!
>     * 食べるの？ Do (I/you/etc) eat this?

  * The wavy dash (`～`) at the end is a casual variant of the long vowel marker (`ー`). And the elongation of the last vowel of sentences is a stereotyped(?) feature of cute, girly speech.

みんなが持ち寄ってるものもあるケド… is "There are also ones (=stuffed animals) others have
brought (into my house), though..."

I'm not sure why katakana are used often in the lines of the second girl,
since I don't know her character nor the author's writing style. Sometimes
katakana like this represents an unusual accent (for example, robot-like
speech, Japanese spoken by foreigners). This is just a guess, but typically a
timid girl may speak in this way.




「飾ってるの〜」 is a casual colloquialism of 「飾っているのです」.

  * ～てる is short for ～ている (progressive form), denoting her habit in this context.
  * Sentence-end の is common in casual girlish speech. Semantically, this is the same as other affirmative expressions like 「～のです」「～のだ」, or questions like 「～のですか」「～のか」, depending on the intonation. 

>     * そうなの！ That's it!
>     * 食べるの？ Do (I/you/etc) eat this?

  * The wavy dash (`～`) at the end is a casual variant of the long vowel marker (`ー`). And the elongation of the last vowel of sentences is a stereotyped(?) feature of cute, girly speech.

みんなが持ち寄ってるものもあるケド… is "There are also ones (=stuffed animals) others have
brought (into my house), though..."

I'm not sure why katakana are used often in the lines of the second girl,
since I don't know her character nor the author's writing style. Sometimes
katakana like this represents an unusual accent (for example, robot-like
speech, Japanese spoken by foreigners). This is just a guess, but typically a
timid girl may speak in this way.

