kaityuudentou ha tukue no hikidasi ni irete arimasu.

A natural reading is:

懐中電灯 は 机 の 引き出し に 入れて あります。
かいちゅうでんとう は つくえ の ひきだし に いれて あります。

Word by word:

• 懐中電灯 = flashlight / torch
• は = topic marker
• 机 = desk
• の = linking particle, like of
• 引き出し = drawer
• に = location/destination particle
• 入れてあります = has been put in / is placed in

は marks 懐中電灯 as the topic of the sentence: as for the flashlight...

So the sentence is talking about the flashlight and saying where it is / what state it is in.

Using は often sounds like:

• Speaking of the flashlight...
• As for the flashlight...

If you used が instead, the nuance would change. が would sound more like identifying or focusing on the flashlight as the subject. Here, は is very natural if the flashlight is already known in the conversation.

机の引き出し literally means the desk’s drawer, but in natural English it usually means the drawer of the desk or simply the desk drawer.

The particle の connects two nouns. In this sentence, it shows that the drawer belongs to or is part of the desk.

So:

• 机 = desk
• 引き出し = drawer
• 机の引き出し = the desk drawer

Here, に marks the place where something has been put.

With verbs related to putting something somewhere, に often marks the destination/location:

• 箱に入れる = put something into a box
• 引き出しに入れる = put something into a drawer

So 机の引き出しに means in the desk drawer or more literally into the desk drawer.

This is one of the most important points in the sentence.

入れてあります is 入れる in て-form + あります.
This pattern, てある, means:

• someone intentionally did the action, and
• the result of that action still remains

So 入れてあります suggests:

• someone put the flashlight in the drawer on purpose
• and now it is there

By contrast:

• 入っています simply describes the state it is in the drawer / it is inside
• 入れてあります highlights that it has been placed there intentionally

So the nuance is not just location, but a resulting state caused by someone’s action.

A useful way to think of it:

• 入っています = it is in there
• 入れてあります = it has been put in there

Both can describe the same real-world situation, but the nuance differs.

入っています

Focuses on the current state.

• 懐中電灯は机の引き出しに入っています。
• The flashlight is in the desk drawer.

This does not strongly tell you whether someone intentionally put it there, or whether you are just observing where it is now.

入れてあります

Focuses on the result of an intentional action.

• 懐中電灯は机の引き出しに入れてあります。
• The flashlight has been placed in the desk drawer.

This often implies usefulness, preparation, arrangement, or deliberate placement.

Not exactly. In English, has been put looks passive, but the Japanese grammar here is not the passive form.

This is the てある construction:

• 入れる → 入れて
  • ある = 入れてある

It means that an action was done and the result remains.

The true passive of 入れる would be something like 入れられる or in past/result contexts other passive forms, but that is not what is happening here.

So it is better to understand てある as:

• is in a state resulting from someone having done X
• here: is in a state resulting from someone having put it in

No, the sentence does not say who did it.

Japanese often leaves out the person who performed the action if it is unknown, unimportant, or obvious from context.

So 入れてあります tells you that someone intentionally put it there, but it does not identify the person.

Depending on context, it could mean:

• I put it there
• someone else put it there
• it has been placed there for convenience

Because the thing being talked about is 懐中電灯, an inanimate object.

In Japanese:

• ある / あります are used for inanimate things
• いる / います are used for animate beings such as people and animals

So:

• 本があります = there is a book
• 猫がいます = there is a cat

Since a flashlight is an object, あります is correct.

Because grammatically it is made of two parts:

• 入れて = the て-form of 入れる
• あります = the polite form of ある

Together they form the grammar pattern てあります.

In normal Japanese writing, you will often see it written without spaces:

懐中電灯は机の引き出しに入れてあります。

The spaces in your example are just there to help learners read the sentence more easily.

Yes, in many situations that is a perfectly natural English translation.

However, that simple translation loses the nuance of てある. A more nuance-sensitive translation would be:

• The flashlight has been put in the desk drawer.
• The flashlight is placed in the desk drawer.
• The flashlight has been left in the desk drawer.

So if you only care about the basic meaning, The flashlight is in the desk drawer is fine. If you want the grammar nuance, try to include the idea of intentional placement.

Potentially both, depending on context.

The てある form is often used when something has been done intentionally for some purpose. That is why it can sound like preparation or arrangement.

For example, if someone asks where the flashlight is, this sentence answers the location.

But if someone is getting ready for a power outage, 入れてあります may imply something like:

• it has been placed there in readiness
• it was put there so it would be easy to find later

So the sentence states a location, but with an added nuance of deliberate arrangement.

It can be grammatical, but the nuance changes.

• 懐中電灯は... = as for the flashlight...
• 懐中電灯が... = the flashlight is the thing that...

Using が can sound more like you are identifying the flashlight specifically, perhaps in contrast to something else.

In many ordinary contexts, は is more natural because the flashlight is already the topic.
So は is the safer and more standard choice here unless you have a reason to focus on the flashlight specifically.

Yes. Japanese word order is more flexible than English, as long as the particles stay attached to the right words.

For example, these are possible:

• 懐中電灯は机の引き出しに入れてあります。
• 机の引き出しに懐中電灯は入れてあります。

The first is the most straightforward and natural in many contexts.

Changing the order usually changes emphasis, not the core meaning. Japanese relies heavily on particles like は and に, so those are more important than strict word order.