tenkyotodoke no kyuuzyuusyo wo kakuninsuru.

It is read:

てんきょとどけ の きゅうじゅうしょ を かくにんする。

Word by word:

• 転居届 = てんきょとどけ
• 旧住所 = きゅうじゅうしょ
• 確認する = かくにんする

転居届 is an official change-of-address notice or moving notification.

More specifically:

• 転居 means moving residence
• 届 means notification or report/form filed with an office

So this is not just casual everyday speech for moving. It sounds administrative or bureaucratic, like something used on forms or in office procedures.

Here, の links two nouns:

• 転居届 = the change-of-address form
• 旧住所 = old address

So 転居届の旧住所 means:

• the old address on the change-of-address form
• or literally, the change-of-address form’s old address

The particle の often works like of, but in natural English it may be translated in different ways depending on context, such as:

• of
• in
• on
• sometimes just by reversing the noun order

In this sentence, on the form is the most natural idea.

Because 旧住所 is the direct object of 確認する.

• 旧住所 = old address
• を = marks the thing being acted on
• 確認する = to check / confirm

So the structure is:

• [thing to check] を 確認する
• check [thing]

Here, the thing being checked is the old address on the change-of-address form.

旧住所 means former address or old address.

• 旧 means former / old
• 住所 means address

This is a common formal way to refer to a previous address, especially in documents.

Compared with casual English, 旧住所 sounds a bit official. In everyday conversation, Japanese people might simply say something more conversational depending on context, but on forms 旧住所 is very normal.

The dictionary form is very common in:

• instructions
• manuals
• checklists
• form descriptions
• official procedures

So 確認する here feels like:

• Check the old address
• Confirm the previous address

It is not necessarily casual. In written instructions, the dictionary form often sounds neutral and procedural.

If this were spoken politely, you might hear:

• 旧住所を確認します
• 旧住所を確認してください

But for a document or checklist item, 確認する is perfectly natural.

It can function as a complete sentence in Japanese, but in context it often feels like an instructional phrase or checklist item.

Japanese frequently omits the subject when it is obvious. So this could imply things like:

• (You) check the old address
• (Staff should) check the old address
• Check the old address

In English, we often need to supply a subject or use the imperative, but Japanese does not always need that.

Because Japanese often leaves out information that is understood from context.

In a procedural or office setting, everyone already knows who is supposed to do the action, such as:

• the staff member
• the clerk
• the person following the checklist
• the system user

So instead of saying something like:

• 担当者は転居届の旧住所を確認する

Japanese often just says:

• 転居届の旧住所を確認する

This is very normal and natural.

Grammatically, yes, の can show a relationship similar to possession. But in this sentence, it is better to think of it more broadly as a noun connection.

So 転居届の旧住所 does not mean the form literally owns an address. It means:

• the old address listed on the form
• the old address in the form
• the old address associated with the form

This is a very common use of の in Japanese: it connects nouns even when English would use a preposition like on, in, or for.

Yes. 確認する often means either:

• check
• confirm
• verify

The best choice depends on context.

For example:

• If someone is looking over a form, check sounds natural.
• If accuracy is important, confirm or verify may fit better.

So 確認する is a very useful verb with a broader meaning than just one English word.

Not exactly.

• 引っ越し is the everyday word for moving house
• 転居 is more formal and official
• 転居届 is specifically a notification/form about a change of residence

So a learner should notice that this sentence uses official document language, not casual conversation.

The structure is:

[noun 1] の [noun 2] を [verb]

In this sentence:

• 転居届 = noun 1
• 旧住所 = noun 2
• 確認する = verb

So:

• 転居届の旧住所 = the old address on the moving-notification form
• 転居届の旧住所を = the old address on the form, as the object
• 転居届の旧住所を確認する = check the old address on the form

This is a very common Japanese pattern, especially in formal writing.