tapseunggwoni eobseumyeon bihaenggireul tal su eobseoyo.

If you don’t have a boarding pass, you can’t board the plane.

Breakdown of tapseunggwoni eobseumyeon bihaenggireul tal su eobseoyo.

• ~이: subject particle
• ~를: object particle
• 없다: to not have
• 비행기: plane

Questions & Answers about tapseunggwoni eobseumyeon bihaenggireul tal su eobseoyo.

What does 탑승권 mean exactly? Is it the same as a ticket?

탑승권 means boarding pass. It is not quite the same as a general ticket.

• 표 or 티켓 can mean a ticket in a broad sense.
• 탑승권 is specifically the pass you need in order to board a plane.

So in this sentence, it means you cannot get on the airplane without your boarding pass.

Why does 탑승권 use 이 in 탑승권이?

The particle 이/가 marks the subject.

Here, 탑승권이 없으면 literally means if a boarding pass does not exist or more naturally if you do not have a boarding pass.

Korean often expresses possession with 있다 / 없다:

• 탑승권이 있어요 = There is a boarding pass / I have a boarding pass
• 탑승권이 없어요 = There is no boarding pass / I do not have a boarding pass

So 이 is used because 탑승권 is the thing whose existence or non-existence is being stated.

How does 없으면 work?