Breakdown of ashita pasupooto o koushinshimasu.
をo
direct object particle
明日ashita
tomorrow
パスポートpasupooto
passport
更新するkoushinsuru
to renew
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Questions & Answers about ashita pasupooto o koushinshimasu.
Where is the subject in this sentence? In English we’d say “I will renew my passport tomorrow,” so why doesn’t Japanese include 私 or I?
Japanese often omits the subject when it’s understood from context. Here, the speaker is clearly talking about themselves, so 私（わたし）は is dropped. If you needed to specify someone else, you’d add the proper noun or pronoun plus は or が.
What role does the particle を play after パスポート?
The particle を marks the direct object of the verb—in other words, what is being renewed. In this case, パスポート is the thing receiving the action of 更新します.
Why is 明日 at the beginning of the sentence? Could it come after the verb or somewhere else?
Time expressions like 明日 are very flexible in Japanese. They commonly appear at the start for emphasis or clarity, but you could also say:
- パスポートを明日更新します。
- 更新します、明日パスポートを。 (very unusual/poetic)
Putting 明日 early simply signals the time frame right away.
What does 更新します mean, and why is it in the -ます form?
更新します is the polite present/future form of the verb 更新する, meaning “to renew” or “to update.” The -ます form is used in formal or polite speech. In casual conversation you might hear:
- 明日パスポート更新する。
Is 更新 a noun or a verb here?
更新 by itself is a noun meaning “renewal” or “update.” You turn it into a verb by adding する, so 更新する is “to renew.” Then you conjugate する to します for politeness.
How do you pronounce 明日 in this sentence? I’ve seen two readings: あした and みょうにち.
In everyday conversation 明日 is read as あした (“ashita”). The reading みょうにち (“myōnichi”) appears in formal announcements, legal texts, or very polite writing, but not in casual speech.
Could you drop パスポート if context made it obvious what you’re renewing?
Yes. If you’re already talking about your passport, you might simply say 明日更新します。 However, if there’s any chance of confusion about what you’re renewing (driver’s license, visa, etc.), it’s best to include パスポートを.