47971
こんにちは！

Recently, I've been practicing for the JLPT N5 using the website's sample
questions. However, in sample question 5, where it asks to give the correct
particle out of a choice of four particles, it reads that の is the correct
particle to use in this sentence:

> 弟{おとうと}は部屋{へや} [particle] 掃除{そうじ}しました。

Is this usage of the particle correct, and how so? Wouldn't を better fit the
sentence?
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2017-06-03T00:38:18.440
47965
2017-06-03T04:15:52.030
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question
particles jlpt furigana
Use of の (particle) in this sentence:
The correct sentence in standard Japanese is:

> 弟は部屋 **を** 掃除しました。 He cleaned his room.

This is because 掃除する is a _verb_ , and a _verb_ must be modified by an
adverbial phrase. Since 掃除する is a transitive verb, its object should be marked
with を.

The following sentence is also correct:

> 弟は部屋 **の** 掃除 **を** しました。 He did the cleaning of his room.

In this case, しました is the verb that just means "to do", and 掃除 is a simple
noun, and 部屋の is an adjectival phrase that modifies 掃除. 部屋の掃除 as a whole
serves as the object of the verb する.

The following sentence is acceptable only in casual conversations:

> [?] 弟は部屋 **の** 掃除しました。

掃除しました is a verb, but apparently it's modified by 部屋の, which is an adjectival
modifier. This is clearly wrong in written formal Japanese. It is heard in
hasty conversation where を can be omitted. Just as you can say 本読む instead of
本を読む in conversations, you can say 部屋の掃除する as the short version of the second
example above.

Anyway, since this is an N5 question, I think you should choose を following
the basic formal rule.

See: [Difference Between べんきょう する and べんきょうを
する](https://japanese.stackexchange.com/q/4006/5010)
CC BY-SA 3.0
2017-06-03T04:15:52.030
47971
2017-06-03T04:15:52.030
5010
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answer