bihaenggireul tal ttae yeogwoneul kkok chaenggiseyo.

Be sure to bring your passport when you board a plane.

Breakdown of bihaenggireul tal ttae yeogwoneul kkok chaenggiseyo.

• ~을: object particle
• ~를: object particle
• 여권: passport
• 비행기: plane

Questions & Answers about bihaenggireul tal ttae yeogwoneul kkok chaenggiseyo.

What does -을 때 mean in 탈 때?

-을/ㄹ 때 means when / at the time of doing (something).
So 비행기를 탈 때 = when you take/get on a plane (i.e., when you’re about to board / when traveling by plane).

---

Why is it 비행기를 with -를? Can it be omitted?

비행기 is the object of 타다 (to ride/take), so it often takes the object particle -을/를 → 비행기를 타다.
In casual speech, -을/를 is sometimes omitted: 비행기 탈 때 also sounds natural, especially in conversation or shorter notices.

---

Does 비행기를 타다 mean “to fly an airplane” or “to get on an airplane”?

In Korean, 비행기를 타다 normally means to take/ride a plane (to board and travel by plane), not to pilot it.
To say fly (pilot) an airplane, you’d use something like 비행기를 조종하다.

---

What nuance does 꼭 add?

꼭 means for sure / 꼭 = definitely / 꼭 = 꼭 빠뜨리지 말고.
It adds emphasis: Make sure you bring it / Don’t forget it. It’s stronger than just saying 여권을 챙기세요.

---

What does 챙기세요 mean exactly—“pack,” “bring,” or “check”?