jeoneun beoseuwa jihacheoreul bigyohaesseoyo.

I compared the bus and the subway.

Breakdown of jeoneun beoseuwa jihacheoreul bigyohaesseoyo.

• ~을: object particle
• 저: I
• ~는: topic particle
• 와: and

Questions & Answers about jeoneun beoseuwa jihacheoreul bigyohaesseoyo.

Why is 저는 used at the beginning of the sentence? What role does it play?

저 means “I” in the humble/polite register, and -는 is the topic marker. By saying 저는, you establish “I” as the topic of your statement (“As for me…”). In everyday polite speech, this makes the sentence more natural and clear.

Why is 와 placed after 버스? Is it just “and”?

Yes, 와 is a particle that means “and” (it connects nouns). You use 와 if the preceding noun ends in a vowel (버스→버스와). If the noun ends in a consonant, you’d use 과. In casual conversation you might also hear 하고 or (이)랑 instead.

Why does only 지하철 have the object marker -을, while 버스 does not?

When you link two nouns with 와, they form a single object phrase. You attach the object marker -을 (or -를) only to the final noun in that phrase. So 버스와 지하철을 means “the bus and the subway” as one combined object of the verb 비교했어요.

What tense and politeness level is 비교했어요? How would I say it in the present or in a more formal style?