Many Korean learners understand Korean formal statements but become confused when Korean formal questions appear.
Why does Korean use “입니까?” in some questions but “-ㅂ니까?” or “-습니까?” in others?
This guide explains the simple rule behind Korean formal questions and shows when each question ending is used.
Learn More About Korean Formal Endings
This guide focuses on Korean formal question endings.
If you want to learn the complete formal Korean system, including statements, past tense, future tense, and questions, see the guide below.
👉 Korean Formal Endings: The Complete Guide to Present, Past, Future, and Questions
Contents
- 1. Why Korean Formal Questions Feel Confusing
- 2. The Simple Rule Behind 입니까?, -ㅂ니까?, and -습니까?
- 3. When to Use “입니까?” in Korean
- 4. When to Use “-ㅂ니까?” in Korean
- 5. When to Use “-습니까?” in Korean
- 6. Why English Speakers Often Get Confused
- 7. Where Koreans Actually Use Formal Questions
- 8. How to Choose the Correct Formal Question Ending
- 9. Practice Exercises: Choose the Correct Formal Question Ending
- 10. Frequently Asked Questions About Korean Formal Questions
- 11. Conclusion: Understanding Korean Formal Questions
- 12. Related Formal Korean Grammar Guides
1. Why Korean Formal Questions Feel Confusing
Korean formal questions often confuse beginners because English and Korean build questions in very different ways.
In English, questions often begin with words such as “is,” “are,” or “do.”
For example:
- Are you a student?
- Are you busy?
- Do you eat breakfast?
Because English changes the beginning of the sentence, it is easy to expect Korean questions to work the same way.
However, Korean usually changes the ending of the sentence instead.
This is where many learners begin to wonder why Korean uses several different question endings.
A common question is:
If all of these are formal questions, why do the endings look different?
Korean chooses formal question endings according to the type of word that comes before the ending and the final sound of that word.
From that point on, the different endings start to make much more sense.
2. The Simple Rule Behind 입니까?, -ㅂ니까?, and -습니까?
The difference between “입니까?”, “-ㅂ니까?”, and “-습니까?” depends on the final word type and the final sound before the ending.
Korean formal questions follow two simple steps.
First, identify whether the sentence ends with a noun, a verb, or an adjective.
Next, look at the final sound of the word.
If the word ends with a vowel sound, Korean usually uses “-ㅂ니까?”
If the word ends with a consonant sound, Korean usually uses “-습니까?”
Nouns follow a different pattern and use “입니까?”
Quick Decision Guide
| Sentence Ends With | Formal Question Ending |
|---|---|
| Noun | 입니까? |
| Verb or Adjective ending in a vowel sound | -ㅂ니까? |
| Verb or Adjective ending in a consonant sound | -습니까? |
You do not need to memorize separate politeness levels for these endings.
The choice is grammatical.
First identify the word type.
Then check the final sound.
That simple process explains most Korean formal question patterns.
3. When to Use “입니까?” in Korean
Korean uses “입니까?” when a formal question ends with a noun.
Many formal questions involve identifying a person, place, object, date, or category.
Because these sentences end with nouns, Korean uses “입니까?” rather than verb-based question endings.
Examples
- 전화번호가 무엇입니까? (What is your phone number?)
- 오늘이 휴일입니까? (Is today a holiday?)
- 여기가 부산입니까? (Is this Busan?)
- 이것이 삼겹살입니까? (Is this samgyeopsal?)
In each example, the question ends with a noun.
This is why Korean uses “입니까?” rather than “-ㅂ니까?” or “-습니까?”
4. When to Use “-ㅂ니까?” in Korean
Korean uses “-ㅂ니까?” when a formal question ends with a verb or adjective that ends in a vowel sound.
A simple way to recognize this pattern is to look at the final sound before the question ending is added.
Examples
- 가다 (to go) + -ㅂ니까? → 갑니까? (Do you go?)
- 오다 (to come) + -ㅂ니까? → 옵니까? (Do you come?)
- 배우다 (to learn) + -ㅂ니까? → 배웁니까? (Do you learn?)
- 보다 (to watch / to see) + -ㅂ니까? → 봅니까? (Do you watch?)
At first, “-ㅂ니까?” may seem like a completely different ending. In reality, Korean simply uses it after verbs and adjectives that end in a vowel sound.
A Pattern Beginners Often Notice
Some common Korean verbs change slightly before “-ㅂ니까?”
놀다 → 놉니까?
(Do you play?)만들다 → 만듭니까?
(Do you make it?)알다 → 압니까?
(Do you know?)These changes often surprise beginners because the dictionary form and the formal question form do not look exactly the same. After a little exposure, however, the pattern becomes much easier to recognize.
5. When to Use “-습니까?” in Korean
Korean uses “-습니까?” when a formal question ends with a verb or adjective that ends with a consonant sound.
This pattern follows the same idea as “-ㅂ니까?” but uses a different ending because of the final sound.
Examples
- 먹다 (to eat) + -습니까? → 먹습니까? (Do you eat?)
- 찾다 (to look for) + -습니까? → 찾습니까? (Do you look for it?)
- 좋다 (to be good) + -습니까? → 좋습니까? (Is it good?)
- 작다 (to be small) + -습니까? → 작습니까? (Is it small?)
Once you understand “-ㅂ니까?”, “-습니까?” becomes much easier to recognize. The pattern is the same, but the word ends with a consonant sound instead of a vowel sound.
At first, it is natural to focus on the question ending itself.
However, Korean speakers usually pay attention to the final sound of the word before choosing the ending.
That is why “먹습니까?” sounds natural, while “먹ㅂ니까?” is not used.
6. Why English Speakers Often Get Confused
English speakers often struggle with Korean formal questions because English and Korean build questions differently.
In English, questions often begin with words such as “is,” “are,” or “do.”
For example:
- Are you a student?
- Are you busy?
- Do you eat breakfast?
Because these English questions look similar, it is natural to expect Korean to use a single formal question ending as well.
However, Korean follows a different system.
English vs Korean
| English Question | Korean Question |
|---|---|
| Are you a student? | 학생입니까? |
| Are you busy? | 바쁩니까? |
| Do you eat breakfast? | 아침을 먹습니까? |
This difference explains why Korean uses “입니까?”, “-ㅂ니까?”, and “-습니까?” instead of a single formal question ending.
📍Notice that the English questions use similar question structures.
However, Korean formal questions use different endings depending on the final Korean word.
Learner Thinking
“If all of these are formal questions, why doesn’t Korean use the same ending?”
The answer is that Korean focuses on the final word and the final sound before the question ending.
English often changes the beginning of a question.
Korean usually changes the ending instead.
Seeing this contrast usually makes the pattern much easier to follow.
7. Where Koreans Actually Use Formal Questions
Formal Korean questions commonly appear in interviews, announcements, classrooms, and other situations that require polite communication.
These patterns are often introduced in beginner Korean textbooks.
However, native speakers still use them in real life when the situation feels formal or official.
Interviews
- 전화번호가 무엇입니까?
(What is your phone number?) - 학생입니까?
(Are you a student?) - 한국어를 배웁니까?
(Do you learn Korean?)
Classrooms
- 질문이 있습니까?
(Do you have any questions?) - 오늘은 무슨 요일입니까?
(What day is it today?) - 선생님이 누구입니까?
(Who is the teacher?)
Surveys
- 한국 음식을 좋아합니까?
(Do you like Korean food?) - 한국어를 공부합니까?
(Do you study Korean?) - 여행을 자주 합니까?
(Do you travel often?)
In everyday conversations with friends, Koreans usually choose less formal question endings such as “-아요?” or “-어요?”
That is why forms such as “입니까?” and “-습니까?” often sound more formal than everyday spoken Korean.
8. How to Choose the Correct Formal Question Ending
Choosing the correct Korean formal question ending becomes much easier when you identify the final word type and the final sound.
Quick Decision Guide
| Final Word Type | Formal Question Ending |
|---|---|
| Noun | 입니까? |
| Verb or Adjective ending in a vowel sound | -ㅂ니까? |
| Verb or Adjective ending in a consonant sound | -습니까? |
9. Practice Exercises: Choose the Correct Formal Question Ending
Practice choosing between “입니까?”, “-ㅂ니까?”, and “-습니까?” using the correct formal question ending.
Exercises
| No. | Question | English Translation |
|---|---|---|
| 1 | 이것이 커피___? (이다) | Is this coffee? |
| 2 | 매일 운동을 ___? (하다) | Do you exercise every day? |
| 3 | 날씨가 ___? (춥다) | Is the weather cold? |
| 4 | 내일이 시험___? (이다) | Is tomorrow the exam? |
| 5 | 주말에 영화를 ___? (보다) | Do you watch movies on weekends? |
| 6 | 저 건물이 도서관___? (이다) | Is that building a library? |
| 7 | 그 사람을 ___? (알다) | Do you know that person? |
| 8 | 오늘이 생일___? (이다) | Is today your birthday? |
| 9 | 한국 드라마를 ___? (좋아하다) | Do you like Korean dramas? |
| 10 | 저녁에 친구를 ___? (만나다) | Do you meet your friends in the evening? |
Answers
- 이것이 커피입니까?
- 매일 운동을 합니까?
- 날씨가 춥습니까?
- 내일이 시험입니까?
- 주말에 영화를 봅니까?
- 저 건물이 도서관입니까?
- 그 사람을 압니까?
- 오늘이 생일입니까?
- 한국 드라마를 좋아합니까?
- 저녁에 친구를 만납니까?
Common Beginner Misunderstanding
These exercises focus on Korean formal question endings because they help learners understand the grammar pattern clearly.
In everyday conversations, however, native Korean speakers usually use casual question endings such as “-아요?” and “-어요?” much more often.
For example:
- 학생입니까? → 학생이에요?
- 한국어를 공부하십니까? → 한국어를 공부해요?
Learning formal questions first makes it easier to understand how Korean question endings work before moving on to more natural everyday speech.
Learn Everyday Korean Questions Next
If you want to sound more natural in everyday Korean conversations, the next step is learning how Koreans actually ask questions using “-아요?” and “-어요?”
👉 Korean “-아요/어요”: The Most Common Question Ending in Everyday Korean
10. Frequently Asked Questions About Korean Formal Questions
These frequently asked questions explain the most common beginner questions about Korean formal question endings such as “입니까?”, “-ㅂ니까?”, and “-습니까?”.
Q1. What does “입니까?” mean in Korean?
“입니까?” is a formal question ending used after nouns. It is the question form of “입니다” and is commonly used to ask formal questions in Korean.
Q2. What is the difference between “입니까?” and “-습니까?”
“입니까?” is used after nouns, while “-습니까?” is used after verbs and adjectives ending in a consonant sound. The choice depends on grammar and pronunciation rather than politeness.
Q3. Is “입니까?” more formal than “-습니까?”
No. Both endings belong to the same formal speech level in Korean. Korean chooses between them based on the type of word and its final sound.
Q4. Can adjectives use “입니까?”
No. “입니까?” is only used with nouns. Adjectives use “-ㅂ니까?” or “-습니까?” depending on whether the final sound is a vowel or consonant.
Q5. How do I choose between “-ㅂ니까?” and “-습니까?”
Use “-ㅂ니까?” when the word ends with a vowel sound. Use “-습니까?” when the word ends with a consonant sound. This rule applies to both verbs and adjectives.
11. Conclusion: Understanding Korean Formal Questions
Understanding Korean formal questions becomes much easier once you stop thinking in English question patterns and start looking at the final Korean word.
A common misunderstanding is that Korean uses the same question ending for all formal questions.
In reality, nouns use “입니까?”, while verbs and adjectives use “-ㅂ니까?” or “-습니까?”
The choice is based on grammar and pronunciation, not politeness.
If you remember this simple rule, formal Korean questions become much easier to understand and use naturally.
12. Related Formal Korean Grammar Guides
Before learning Korean formal past tense or future tense, make sure you understand how Korean formal statements and questions work together.
👉 Korean Formal Endings: The Complete Guide to Present, Past, Future, and Questions
Formal Korean Endings
- Korean “입니다” vs “-ㅂ니다/-습니다”
- Korean Formal Past Tense: 았습니다 vs 었습니다
- Korean Formal Future Tense: How to Use 겠습니다