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Learn Hardcore Japanese: seikyuukikan wo kakuninsuru. - I check the billing period.

Hardcore Japanese
/Disputing an incorrect mobile phone bill
/seikyuukikan o kakuninsuru.

seikyuukikan o kakuninsuru.

請求期間せいきゅうきかん　を　確認かくにんする。seikyuukikan o kakuninsuru.

I check the billing period.

Breakdown of seikyuukikan o kakuninsuru.

direct object particle

確認かくにんするkakuninsuru

請求期間せいきゅうきかんseikyuukikan

a billing period

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Questions & Answers about seikyuukikan o kakuninsuru.

How do you read 請求期間を確認する。?

It is read:

せいきゅうきかんをかくにんする。

請求期間 = せいきゅうきかん
を = pronounced o
確認する = かくにんする

In normal writing, it would usually appear without spaces:

請求期間を確認する。

What does 請求期間 mean exactly?

請求期間 is a compound noun made of:

請求 = claim, billing, request for payment
期間 = period, term, span of time

So 請求期間 usually means something like:

billing period
claim period
period during which billing or claiming applies

The exact English translation depends on context. In a utility bill, it may mean billing period. In insurance or legal paperwork, it could mean claim period.

Why is を used here?

Nihon-shiki romanizationwatasi ha tyuugoku kara kimasita

Hepburn romanizationwatashi wa chuugoku kara kimashita

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を marks the direct object of the verb.

Here, the verb is 確認する meaning to confirm / to check, and the thing being checked is 請求期間.

So the structure is:

請求期間 + を + 確認する
= check the billing/claim period

This is a very standard Japanese pattern: object + を + verb

Why is 確認する in the plain dictionary form?

The dictionary form 確認する is commonly used in:

headings
instructions
manuals
labels
checklist items
simple written statements

So this can sound like:

a neutral action label
an instruction such as Check the billing period
a note on a form or screen

If you wanted a polite full sentence, you might say:

請求期間を確認します。

If you wanted a direct command, you might say:

請求期間を確認してください。

Is 確認する one word, or is it 確認 + する?

Grammatically, it is 確認 + する.

確認 is a verbal noun, meaning confirmation or checking
する turns it into a verb: to confirm / to check

This is a very common pattern in Japanese. Other examples are:

勉強する = to study
連絡する = to contact
予約する = to reserve

So 確認する literally has the structure do confirmation, but in natural English it is simply confirm or check.

Is this a complete sentence even though there is no subject?

Yes. In Japanese, the subject is often omitted when it is obvious from context.

So 請求期間を確認する。 can still be perfectly natural, especially in:

instructions
written procedures
notes
interface text
task lists

Depending on context, the omitted subject could be understood as:

you
I
the user
the staff member
one

Japanese often leaves this unstated when it is not necessary.

Why is there no は or が in this sentence?

Because the sentence is focused on the action and object, not on stating a topic or explicitly marking a subject.

You could add a topic or subject in a longer sentence, for example:

利用者は請求期間を確認する。 = The user checks the billing period.
担当者が請求期間を確認する。 = The person in charge checks the billing period.

But when the subject is already understood, Japanese usually leaves it out. That is why the shorter version sounds natural.

What is the basic word order here?

The basic order is:

object + を + verb

So:

請求期間 = object
を = object marker
確認する = verb

Japanese verbs usually come at the end of the sentence. This is different from English, where the verb often comes earlier.

English: Check the billing period.

Japanese: Billing period + object marker + check

Why are there spaces in the sentence I was shown?

The spaces are probably there only to help learners see the parts more clearly.

In normal Japanese writing, you would usually write:

請求期間を確認する。

Japanese does not normally use spaces between words the way English does.

So the spaced version is a learning aid, not standard formatting.

What nuance does 確認する have? Is it the same as just 見る?

Not exactly.

確認する means more than just look at. It has the nuance of:

checking carefully
verifying
making sure
confirming that something is correct

By contrast, 見る simply means to see / to look at.

So:

請求期間を見る = look at the billing period
請求期間を確認する = check/confirm the billing period

In many practical contexts, 確認する is the more natural choice because it suggests purposeful checking.

Can I understand the kanji individually to remember the expression better?

Yes. Breaking it down can help:

請 = request
求 = seek, demand
期 = period, time
間 = interval, span
確 = certain, sure
認 = recognize, acknowledge

So the overall idea is something like:

請求期間 = the period related to billing or claiming
確認する = make sure, verify, confirm

Even if the individual kanji meanings do not give a perfect English translation by themselves, they are useful for remembering the vocabulary.

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