jeoneun gonghangeseo bihaenggi pyoreul sayo.

I buy a plane ticket at the airport.

Breakdown of jeoneun gonghangeseo bihaenggi pyoreul sayo.

• ~에서: location particle
• 사다: to buy
• ~를: object particle
• 저: I

Questions & Answers about jeoneun gonghangeseo bihaenggi pyoreul sayo.

What is the function of the 는 in 저는?

는 is the topic marker. It marks 저 (“I”) as the topic of the sentence—think “as for me.” It sets the context for what follows. If you used 제가, you’d be using the subject marker 가, which emphasizes the doer rather than introducing the topic.

Why do we use 공항에서 instead of 공항에?

• 에서 indicates the location where an action takes place, so 공항에서 means “at the airport” (the place you buy the ticket).
• 에 alone would mark a static location (“in/at the airport”) or a destination (“to the airport”) but doesn’t specify “where the action happens.” Saying 공항에 비행기 표를 사요 would sound like “to the airport buy a ticket” and is ungrammatical—you’d need 가서 to express “go and buy.”

What does the 를 in 표를 indicate?

를 is the object marker. It attaches to 표 (“ticket”) to show that it’s the direct object of the verb 사요 (“buy”). Without 를, it wouldn’t be clear what you’re buying.

Why is 비행기 표 ordered that way? Could it be 표 비행기?

In Korean, modifiers come before the noun they modify. 비행기 (“plane”) describes 표 (“ticket”), so you say 비행기 표 = “airplane ticket.” You cannot reverse them.