neru mae ni, heya no denki o sukoshi kuraku shimasu.

direct object particle

Breakdown of neru mae ni, heya no denki o sukoshi kuraku shimasu.

• の: possessive case particle
• に: time particle
• 部屋へや: room

Questions & Answers about neru mae ni, heya no denki o sukoshi kuraku shimasu.

Why is 寝る in the plain form before 前に instead of 寝ます前に?

When a verb comes before 前に, it normally stays in the dictionary form:

• 寝る前に = before sleeping / before I sleep
• 食べる前に = before eating
• 行く前に = before going

So 寝ます前に is not the normal pattern.
The grammar is:

• verb (dictionary form) + 前に

This is different from English, where we often use before + -ing.

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What exactly does 前に mean here?

前 means before or in front, and に marks the point in time.

In this sentence, 寝る前に means:

• before sleeping
• before I go to bed

So 前に is acting like a time expression.

You will often see:

• 食事の前に = before the meal
• 出かける前に = before going out
• 寝る前に = before sleeping

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Why is there a comma after 寝る前に?

The comma is just there to make the sentence easier to read.

Japanese often puts a time phrase or context phrase first, like:

• 寝る前に、...
• 毎朝、...
• 学校で、...

The comma is helpful, but it is not always required.
You could also write:

• 寝る前に部屋の電気を少し暗くします。

That would still be natural.

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