Breakdown of ashita no ryokou no junbi o shimasu.
のno
possessive case particle
明日ashita
tomorrow
旅行ryokou
trip
準備 を するjunbi o suru
Questions & Answers about ashita no ryokou no junbi o shimasu.
Why is の used twice in this sentence?
The first の links 明日 (tomorrow) to 旅行 (trip), forming 明日の旅行 (“tomorrow’s trip”). The second の links 旅行 to 準備, forming 旅行の準備 (“preparation for the trip”). In Japanese, の is the genitive/possessive marker that connects nouns.
Why is 準備 followed by を and then します? Couldn’t we just say 準備します?
Japanese often uses the pattern [noun] + を + する to mean “to do [noun].” Here, 準備 is the noun and する becomes します in polite form. Grammatically, you need を to mark 準備 as the object of する. In casual speech, some speakers drop を (e.g. 準備します sounds fine), but in standard Japanese 準備をします is clearer.
What does します mean here? Is it a future tense?
Japanese doesn’t have a separate future tense. The verb form します is non-past and can mean either “do” or “will do” depending on context. In this sentence, because you’ve set a time reference (明日の旅行), します is understood as “will prepare.”
Why isn’t there a subject like 私 (I) in the sentence?
