watashi wa rainen ryuugakusuru tame ni pasupooto o koushinshita.

I renewed my passport in order to study abroad next year.

Breakdown of watashi wa rainen ryuugakusuru tame ni pasupooto o koushinshita.

• は: topic particle
• 私わたし: I
• を: direct object particle
• ため に: for (the sake of)

Questions & Answers about watashi wa rainen ryuugakusuru tame ni pasupooto o koushinshita.

Why is 私 marked with は instead of が?

In Japanese, は is the topic marker, setting the stage for what the sentence is about (“As for me…”). が is the subject marker, often used to introduce new or specific subjects. Here, “私” is already understood as the topic (“I”), so we use は to indicate “as for me, I renewed my passport…”.

What role does 来年 play, and why is there no particle after it?

来年 (“next year”) is a time adverbial, telling us when something happens. Japanese often places time expressions at the start of a sentence for clarity and allows them to appear without particles. While you could say 来年に in some contexts, it’s common and natural to drop に with words like days, months, years.

Why is the verb 留学する in its dictionary form before ために?

The pattern (dictionary form of verb) + ために means “in order to do (verb).” You attach 留学する directly in its dictionary form to ために to express the purpose: “in order to study abroad.”

Why must ため be followed by に in purpose clauses?

Here, ため is a noun meaning “sake” or “purpose.” To turn it into a purpose phrase, you need the particle に, which links the noun to the main action. So 留学するために literally means “for the purpose of studying abroad.”