Saya membeli sepatu baru dengan ukuran empat puluh.

I bought new shoes in size forty.

Breakdown of Saya membeli sepatu baru dengan ukuran empat puluh.

• saya: I
• baru: new
• dengan: with
• membeli: to buy
• sepatu: the shoe
• ukuran: the size
• empat puluh: forty

Questions & Answers about Saya membeli sepatu baru dengan ukuran empat puluh.

What does saya mean here?

saya is the first-person pronoun “I” in Indonesian. It’s neutral and polite. In informal speech you might hear aku, and in certain regions or slang, gue.

Could I just say Saya beli sepatu baru instead of Saya membeli sepatu baru? What’s the difference between beli and membeli?

membeli is the proper active verb “to buy,” formed by adding the meN- prefix to the root beli. It’s common in formal or written Indonesian. In casual conversation you can drop the prefix and say Saya beli sepatu baru, and people will understand you perfectly.

How do you know if this sentence is past, present, or future tense, since membeli doesn’t change?

Indonesian verbs don’t inflect for tense. Time is shown by context or time words. Here, without any time marker, Saya membeli… is understood as past (I bought). To be explicit you could add:

• Kemarin saya membeli sepatu baru (Yesterday I bought new shoes)
• Besok saya akan membeli sepatu baru (Tomorrow I will buy new shoes)

Why isn’t sepatu in plural form, like sepatu-sepatu?

Most Indonesian nouns are unmarked for number. sepatu can mean “shoe,” “shoes,” or “a pair of shoes” depending on context. You only use the reduplication sepatu-sepatu if you want to emphasize multiple pairs.

Why is the adjective baru placed after sepatu instead of before?

In Indonesian, adjectives normally follow the noun they describe. So sepatu baru literally reads “shoes new,” which we translate as “new shoes.”

What role does dengan play in dengan ukuran empat puluh, and can it be omitted?

dengan means “with” and introduces a specification (in this case, size). It’s not mandatory—you can say Saya membeli sepatu baru ukuran empat puluh and it’s still correct. Including dengan makes the phrase slightly more formal or explicit.

How are numbers like empat puluh formed, and how would you say “forty-one”?

empat puluh means “forty” (4 × 10). Tens in Indonesian are built by [digit] + puluh: dua puluh (20), tiga puluh (30). To add units, just append the number:

• empat puluh satu (41)
• empat puluh dua (42)
  …and so on.