Korean Connective: 'As I See It' (-건대)
Grammar Rule in 30 Seconds
Use -건대 to introduce a statement based on your own observation, experience, or a strong inference.
- Attach to verb stems: '보건대' (judging by what I see).
- Use for personal judgment: '내가 알건대' (As far as I know).
- Use for formal predictions: '예측하건대' (As I predict).
Overview
The Korean connective particle -건대 (geon-dae) is a sophisticated grammatical structure used to explicitly ground a statement in the speaker's sensory or cognitive experience. It serves as a formal and literary method for saying, "As I see it," "Based on what I have heard," or "In my considered judgment." Its fundamental purpose is to establish the epistemic basis of an assertion—that is, how the speaker knows what they are claiming. By using -건대, the speaker prefaces their main clause with the perceptual or mental act that led to their conclusion, lending the statement a tone of deliberate, reasoned authority.
This particle attaches almost exclusively to a select group of verbs related to perception (보다 - to see, 듣다 - to hear), cognition (생각하다 - to think, 판단하다 - to judge), and desire (바라다 - to hope). You will primarily encounter -건대 in formal discourse where structured argumentation is valued, such as academic papers, official reports, legal arguments, and prepared speeches. It is rare in casual conversation, but its deliberate use in informal contexts can create a humorous or ironic effect by clashing with the low-stakes subject matter.
Mastering -건대 signifies a move from simply stating opinions to articulating the logical foundation of those opinions, a hallmark of advanced rhetorical skill.
Consider the difference: 그 정책은 효과가 없다 ("That policy is ineffective") is a direct, ungrounded assertion. In contrast, 내가 판단하건대, 그 정책은 효과가 없다 ("By my judgment, that policy is ineffective") frames the same assertion as a conclusion reached through a specific process of evaluation. The first states a fact; the second presents a reasoned analysis.
This distinction is the core nuance of -건대.
How This Grammar Works
-건대 functions as a subordinate clause that provides the perceptual premise for the main clause. The structure follows the formula: [Verb of Perception/Cognition Stem] + -건대, [Resulting Assertion or Judgment]. This construction signals to the listener that the subsequent statement is a subjective conclusion, but one derived from a specific, named source of evidence: the speaker's own act of seeing, hearing, or thinking.제가 듣건대... - "Based on what I have heard..."), you implicitly acknowledge that your information is limited to that source, leaving room for other perspectives.- Example:
이 연구의 결과만 보건대, 특정 연령대에서 유의미한 차이가 나타났다.(Observing only the results of this study, a significant difference appeared in a specific age group.)
-건대 can project strong authority. When used by an individual in a position of expertise or power, it implies, "My perception is the foundation for the reality we are discussing." The speaker's observation is presented as a sufficient and authoritative basis for a decision or a powerful claim. The subjectivity becomes a tool of persuasion.- Example:
금년 실적을 보건대, 내년에는 새로운 마케팅 전략이 필요합니다.("Looking at this year's performance, a new marketing strategy is necessary for next year.")
바라다 (to wish/hope). The form 바라건대 (barageondae) elevates a simple wish into a formal, often public, appeal. It translates not just as "I hope," but as "It is my sincere and formal hope that..." This form is frequently used in speeches and official documents to express a collective aspiration or a solemn desire.- Example:
바라건대, 이번 회담이 평화 정착의 초석이 되기를 바랍니다.(I sincerely hope that this summit will become a cornerstone for establishing peace.)
Formation Pattern
-건대 is its simple and unvarying formation rule. You attach -건대 directly to the verb stem. It does not change based on whether the stem ends in a vowel or a consonant, and there are no irregular forms. Furthermore, -건대 itself is tenseless; it does not conjugate for past (-았/었-) or future (-겠-) tenses.
먹다 (to eat) or 가다 (to go) is a fundamental error.
보다 (to see) → 보건대 (Based on what I see/observe)
듣다 (to hear) → 듣건대 (Based on what I hear/have heard)
느끼다 (to feel) → 느끼건대 (Based on what I feel/sense)
생각하다 (to think) → 생각하건대 (In my considered opinion / As I think it over)
판단하다 (to judge) → 판단하건대 (By my judgment / As I judge it)
짐작하다 (to surmise/guess) → 짐작하건대 (As I surmise / My educated guess is)
추측하다 (to speculate) → 추측하건대 (Speculating that...)
바라다 (to wish/hope) → 바라건대 (I sincerely hope that...)
원하다 (to want/desire) → 원하건대 (What I desire is that...)
보다 | boda | 보- | 보건대 | Based on what I see; observing from (visual evidence) |
듣다 | deutda | 듣- | 듣건대 | Based on what I hear; from what I've heard (auditory evidence/rumor) |
생각하다 | saenggak-hada | 생각하- | 생각하건대 | In my considered opinion; as I think about it (rational judgment) |
바라다 | barada | 바라- | 바라건대 | I sincerely hope/wish that... (formal, public hope) |
판단하다 | pandan-hada | 판단하- | 판단하건대 | Based on my judgment; as I judge it (authoritative assessment) |
느끼다 | neukkida | 느끼- | 느끼건대 | Based on what I feel; my sense is that (intuitive/emotional basis) |
짐작하다| jimjak-hada | 짐작하- |짐작하건대| Based on my educated guess; as I surmise (inference from incomplete info) |
미루어 보건대 ("judging by analogy" or "inferring from"), but the verbs in the table constitute over 99% of modern usage.
When To Use It
-건대 effectively requires a strong sense of register and context. It's not a simple replacement for "I think." Its use is a deliberate rhetorical choice.-건대. In essays, research papers, and business reports, it signals a transition from presenting data to interpreting it. It adds a layer of scholarly precision by stating the grounds for an analytical claim.- Example:
보고서의 통계 자료를 보건대, 소비자 행동에 명백한 변화가 감지되었습니다.(Observing the statistical data in the report, a clear change in consumer behavior has been detected.)
-건대 helps structure an argument and lend it gravitas. The form 바라건대 is particularly powerful for opening or closing remarks, framing a collective hope or vision.- Example:
바라건대, 이 포럼이 양국 간의 이해를 증진시키는 중요한 계기가 되기를 바랍니다.(I sincerely hope that this forum serves as an important opportunity to promote understanding between our two countries.)
-건대 allows you to frame your opinion as a well-considered judgment based on evidence, not a casual thought. It demonstrates thoroughness and analytical rigor.- Example (in a formal work email):
제가 듣건대, 클라이언트 측에서 계약 조건의 수정을 요구할 가능성이 크다고 합니다.(From what I hear, there is a high possibility that the client will request a modification of the contract terms.)
-건대 involves register clash. By applying this highly formal structure to a mundane or silly topic, a speaker can create a humorous, ironic effect. This is common on social media and among linguistically savvy friends.- Example (in an online debate about food):
내가 생각하건대, 민트초코는 치약이 아니라 상쾌함의 미학을 담은 디저트다.(In my considered opinion, mint chocolate is not toothpaste, but a dessert embodying the aesthetics of refreshment.)
Common Mistakes
-건대 involves avoiding several common traps that advanced learners fall into. These errors are typically not about conjugation but about application and nuance.-건대 to general action verbs. Its function is to state an epistemic basis (how you know something), which is rooted in perception or cognition, not physical action.- Incorrect:
내가 어제 운동하건대, 몸이 아팠다.(X) This is grammatically incoherent. To mean "I exercised yesterday and my body hurt," you would use어제 운동했더니 몸이 아팠다. - Correct:
내가 느끼건대, 이 운동은 나에게 너무 무리인 것 같다.(✓) (As I feel it, this exercise seems to be too much for me.)
-건대 requires that the entire sentence, including vocabulary and the sentence ender, maintains a consistent formal tone. Using it with casual language is jarring unless for specific ironic effect.- Incorrect:
듣건대, 너 어제 소개팅 완전 대박이었다며?(X) The formal듣건대clashes badly with the slang대박and the casual ending-(이)라며?. A natural phrasing would be어제 소개팅 완전 대박이었다면서?. - Correct:
듣건대, 김 과장님께서 어제 중요한 계약을 성사시키셨다고 합니다.(✓) (From what I've heard, Manager Kim successfully closed an important contract yesterday.)
-건대 with other connectives that have superficially similar translations but entirely different functions. Understanding these distinctions is crucial.보건대, 문제가 있다. (As I see it, there is a problem.) |창밖을 보니, 비가 오고 있었다. (I looked out the window and saw it was raining.) |문제를 보거든, 즉시 보고해 주세요. (If you see a problem, please report it immediately.) |문제를 보자마자, 해결책을 생각했다. (As soon as I saw the problem, I thought of a solution.) |-건대. Forms like 보았건대 or 들었건대 are incorrect. The particle itself is tenseless. The act of perceiving or judging is considered to be happening in the present moment of speaking, even if the object of perception is in the past. The past context is conveyed by the main clause or adverbs.- Example:
듣건대, 그 회사는 10년 전에 이미 파산했다고 한다.(From what I've heard, that company already went bankrupt 10 years ago.) The "hearing" provides the present basis for the statement about a past event.
*알건대 (algeondae) Trap알건대 from 알다 (to know) is not used. This is because 알다 implies a state of established fact or certainty. In contrast, -건대's entire function is to frame a conclusion as an interpretation derived from a process* of perception. They are philosophically incompatible. For a qualified statement of fact, the correct structure is 내가 알기로는 ("As far as I know").Real Conversations
Here are four scenarios illustrating how -건대 is used naturally in different modern contexts.
Scenario 1
An analyst presents a recommendation based on data, using 보건대 to add analytical weight.
To
전략기획팀 (Strategy & Planning Team)Subject
RE: 2026년도 신규 사업 방향성에 대한 의견 (RE: Opinion on New Business Direction for FY2026)여러 데이터를 종합하여 보건대, 현재 시장은 Z세대를 겨냥한 지속가능성 관련 제품에 대한 수요가 급증하고 있습니다. 따라서 저희는 해당 분야에 대한 투자를 우선적으로 고려해야 한다고 판단합니다.
(Translation: "Looking comprehensively at various data, demand in the current market for sustainability-related products targeting Gen Z is rapidly increasing. Therefore, it is my judgment that we must prioritize investment in this area.")
Scenario 2
A student respectfully presents their own interpretation of a literary work.
Post Title
김영하의 「살인자의 기억법」에 대한 해석 (An Interpretation of Kim Young-ha's "Diary of a Murderer")작품의 서사 구조만 놓고 보건대, 주인공의 기억은 의도적으로 왜곡되어 있으며, 독자는 신뢰할 수 없는 화자의 함정에 빠지게 됩니다. 제가 생각하건대, 이 소설의 진정한 주제는 기억의 불완전성 그 자체입니다.
(Translation: "Looking only at the narrative structure of the work, the protagonist's memory is intentionally distorted, and the reader falls into the trap of an unreliable narrator. In my considered opinion, the true theme of this novel is the imperfection of memory itself.")
Scenario 3
The director uses 바라건대 to deliver an aspirational, forward-looking closing message.
...이상으로 제 발표를 마치겠습니다. 바라건대, 오늘 우리가 나눈 이야기들이 더 나은 사회를 만드는 데 작은 씨앗이 되기를 진심으로 바랍니다. 감사합니다.
(Translation: "...This concludes my presentation. I sincerely hope that the conversations we have shared today will become small seeds for building a better society. Thank you.")
Scenario 4
A user ironically applies a highly formal structure to the trivial debate over how to eat 탕수육 (sweet and sour pork).
Original Post
탕수육 with the sauce poured all over it.)Comment
내가 보건대, 소스를 부어 먹는 '부먹'이야말로 진정한 미식가의 길이다. 눅눅함이 아닌, 소스와 튀김의 완벽한 조화를 추구하는 것이다. 찍먹파는 아직 이 깊이를 모른다.(Translation: "As I see it, 'bu-meok,' pouring the sauce on top, is the path of a true connoisseur. It's not about sogginess; it's about pursuing the perfect harmony of sauce and fried pork. The 'jjik-meok' (dipping) faction does not yet know this depth.")
Quick FAQ
-건대 in a text message?Only if the context is formal or you are being intentionally humorous. In a professional chat with your boss (e.g., on Kakao Work), a sentence like 제가 듣건대, 회의가 30분 연기되었다고 합니다 is perfectly fine. But sending 내가 보건대, 오늘 날씨 좋네 to a friend would sound bizarrely stiff. For that, you'd just say 오늘 날씨 좋다.
생각하건대 and 제 생각에는?They differ in weight and formality. 제 생각에는 ("In my opinion") is a neutral, universally common way to introduce a thought. It's collaborative. 생각하건대 ("In my considered judgment") is more formal, rhetorical, and authoritative. It implies a deliberate process of reasoning and is used to present a conclusion, not just share an idea. You use 제 생각에는 in a discussion; you use 생각하건대 in a declaration.
The form 보건대 works for past events. It means, "Based on my present analysis of what I saw..." The past context comes from adverbs or the main clause. For example: 어제 경기를 보건대, 우리 팀의 수비에 심각한 문제가 있었다. (Observing yesterday's game, our team had a serious problem with its defense). The act of "observing" is your current mental action of using that memory as evidence.
바라건대 the most common form of this grammar?While 보건대 and 생각하건대 are the workhorses in formal writing, 바라건대 is arguably the most visibly and frequently encountered form in public life. This is because of its specialized, almost set-phrase role in formal speeches, ceremonies, and official documents (바라건대 ... -기를 바랍니다). Its very specific and powerful function makes it highly memorable.
Yes, but they are far less common and more literary or academic. You might encounter 미루어 보건대 ("Inferring from..." or "Judging by analogy..."), which combines 미루어 보다 (to infer) with -건대. In very formal requests, 요청하건대 ("I formally request that...") can also be seen. However, for all practical purposes, mastering 보다, 듣다, 생각하다, and 바라다 is sufficient for fluent and sophisticated communication.
Formation Table
| Verb Stem | Connective | Result |
|---|---|---|
|
보
|
건대
|
보건대
|
|
알
|
건대
|
알건대
|
|
듣
|
건대
|
듣건대
|
|
판단하
|
건대
|
판단하건대
|
|
예측하
|
건대
|
예측하건대
|
|
기억하
|
건대
|
기억하건대
|
Meanings
This connective functions to introduce a clause that serves as the basis for a subsequent judgment or observation. It implies the speaker is drawing a conclusion from their own experience or evidence.
Evidence-based Judgment
Drawing a conclusion based on observed facts.
“정황을 보건대 범인은 이미 떠났다.”
“그의 표정을 보건대 기분이 좋지 않은 듯하다.”
Personal Knowledge/Assertion
Stating something based on one's own memory or knowledge.
“내가 알건대 그는 거짓말을 할 사람이 아니다.”
“내가 기억하건대 그날은 비가 왔다.”
Reference Table
| Form | Structure | Example |
|---|---|---|
|
Affirmative
|
Stem + 건대
|
보건대
|
|
Knowledge
|
Stem + 건대
|
알건대
|
|
Prediction
|
Stem + 건대
|
예측하건대
|
|
Memory
|
Stem + 건대
|
기억하건대
|
|
Judgment
|
Stem + 건대
|
판단하건대
|
|
Hearing
|
Stem + 건대
|
듣건대
|
Formality Spectrum
상황을 보건대 우리는 떠나야 합니다. (Professional meeting)
상황을 보건대 우리는 떠나야 해요. (Professional meeting)
상황을 보건대 우리 떠나야 해. (Professional meeting)
상황 보니까 우리 가야 돼. (Professional meeting)
The -건대 Logic Flow
Input
- 보다 to see
- 알다 to know
Connector
- -건대 as I...
Output
- 판단 judgment
- 예측 prediction
Examples by Level
내가 보건대 좋다.
As I see it, it is good.
내가 알건대 맞다.
As far as I know, it is correct.
내가 듣건대 좋다.
As I hear, it is good.
내가 보건대 크다.
As I see it, it is big.
내가 보건대 그는 학생이다.
Judging by what I see, he is a student.
내가 알건대 그는 바쁘다.
As far as I know, he is busy.
내가 듣건대 그들은 간다.
As I hear, they are going.
내가 보건대 이것은 비싸다.
Judging by what I see, this is expensive.
정황을 보건대 범인은 도망갔다.
Judging by the circumstances, the culprit has fled.
내가 기억하건대 그는 어제 왔다.
As I recall, he came yesterday.
그의 태도를 보건대 화가 났다.
Judging by his attitude, he is angry.
내가 알건대 그는 정직하다.
As far as I know, he is honest.
시장 상황을 보건대 투자는 위험하다.
Judging by the market situation, investment is risky.
그의 성적을 보건대 합격할 것이다.
Judging by his grades, he will pass.
내가 듣건대 그 회사는 파산했다.
As I hear, that company went bankrupt.
데이터를 보건대 결과는 확실하다.
Judging by the data, the result is certain.
역사를 보건대 전쟁은 반복된다.
Judging by history, war repeats itself.
내가 알건대 이 법은 개정되어야 한다.
As far as I know, this law must be revised.
그의 과거를 보건대 그는 변하지 않을 것이다.
Judging by his past, he will not change.
내가 예측하건대 경제는 회복될 것이다.
As I predict, the economy will recover.
인류의 발전을 보건대 기술은 필수적이다.
Judging by human progress, technology is essential.
내가 판단하건대 이 결정은 최선이다.
As I judge, this decision is the best.
기록을 보건대 그는 무죄임이 명백하다.
Judging by the records, it is clear he is innocent.
내가 확신하건대 우리는 성공할 것이다.
As I am sure, we will succeed.
Easily Confused
Both relate to seeing/observing.
Both relate to knowledge.
Spelling is almost identical.
Common Mistakes
예쁘건대
보건대
먹건대
보건대
가건대
보건대
좋건대
보건대
보건데
보건대
알건데
알건대
듣건데
듣건대
내가 보건대 비가 온다.
내가 보건대 비가 올 것 같다.
내가 알건대 그는 안 왔다.
내가 알건대 그는 오지 않았다.
내가 듣건대 그가 했다.
내가 듣건대 그가 했다고 한다.
내가 보건대 그는 천재다.
내가 보건대 그는 천재인 듯하다.
내가 예측하건대 내일 비다.
내가 예측하건대 내일 비가 올 것이다.
내가 판단하건대 좋다.
내가 판단하건대 좋은 선택이다.
Sentence Patterns
내가 ___건대, ___.
___을 보건대, ___.
내가 ___하건대, ___.
___을 기억하건대, ___.
Real World Usage
시장 상황을 보건대 투자가 필요합니다.
데이터를 보건대 결과는 유의미합니다.
기록을 보건대 피고는 현장에 없었습니다.
정황을 보건대 사건은 계획된 것입니다.
내가 확신하건대 우리는 성공할 것입니다.
상황을 보건대 일정을 조정해야 합니다.
Use with Perception Verbs
Avoid Adjectives
Formal Tone
Authority Marker
Smart Tips
Use -건대 to introduce your main argument based on the data you analyzed.
Use '예측하건대' to frame your prediction as a logical outcome.
Use '기록을 보건대' to ground your point in facts.
Use '태도를 보건대' to show you are analyzing their actions.
Pronunciation
Consonant assimilation
The 'ㄱ' in '건대' might be influenced by the preceding sound.
Formal statement
↗↘
Rising then falling intonation for a professional assertion.
Memorize It
Mnemonic
Think of '건대' as 'Con-deduce'. You are 'con-deducing' your opinion from what you see.
Visual Association
Imagine a detective looking through a magnifying glass (보건대) and pointing to a clue to make a final statement.
Rhyme
When you see the evidence clear, add -건대 so they hear.
Story
Detective Kim looked at the footprints. '내가 보건대 (As I see it), the thief went this way.' He then checked his notes. '내가 알건대 (As I know), he is left-handed.' He was confident in his deduction.
Word Web
Challenge
Write three sentences about your day using -건대 to explain your conclusions.
Cultural Notes
Used in reports to sound objective and analytical.
Used in papers to justify conclusions.
Used in court to present evidence.
Derived from the verb '보다' (to see) and '알다' (to know) combined with the formal connective '-건대'.
Conversation Starters
요즘 경제 상황을 보건대 어때요?
그 사람의 태도를 보건대 믿을 수 있나요?
내가 알건대 이 식당이 유명한데 맞나요?
역사를 보건대 미래는 어떻게 될까요?
Journal Prompts
Common Mistakes
Test Yourself
상황을 (보)_____ 우리는 떠나야 한다.
Which sentence is correct?
Find and fix the mistake:
예쁘건대 그는 천사 같다.
Arrange the words in the correct order:
All words placed
Click words above to build the sentence
Judging by the data, the result is certain.
Answer starts with: 데이터...
Match each item on the left with its pair on the right:
Build a sentence.
A: 이 프로젝트 성공할까? B: _____
Score: /8
Practice Exercises
8 exercises상황을 (보)_____ 우리는 떠나야 한다.
Which sentence is correct?
Find and fix the mistake:
예쁘건대 그는 천사 같다.
보건대 / 상황을 / 우리는 / 떠나야 / 한다
Judging by the data, the result is certain.
Match the verb to the context.
Build a sentence.
A: 이 프로젝트 성공할까? B: _____
Score: /8
Practice Bank
6 exercises____ 그 배우가 곧 은퇴한다면서요?
내가 (____), 그는 거짓말을 하고 있다.
보건대 / 내가 / 비가 / 것 / 올 / 같다 / 곧
Choose the incorrect pairing:
Match the pairs:
생각하거든, 이건 네 잘못이야.
Score: /6
FAQ (8)
No, it is strictly for verbs of perception or cognition like `보다`, `알다`, `듣다`.
Yes, it is highly formal and used in professional or academic contexts.
`-보니까` is casual and general, while `-건대` is formal and implies a logical deduction.
`-건대` is the formal connective, while `-건데` is a colloquial ending.
It is generally too formal for casual texting.
No, it is always `-건대` regardless of the stem.
It helps the speaker present their argument as a logical deduction based on evidence.
It is better used for objective observations or logical deductions.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
A juzgar por...
Spanish uses a prepositional phrase, Korean uses a verb conjugation.
À en juger par...
French is a fixed expression, Korean is a productive verb suffix.
Insofern...
German is a conjunction, Korean is a suffix.
～から見ると
Japanese uses a particle structure, Korean uses a connective suffix.
据...来看
Chinese uses a prepositional structure, Korean is a verb suffix.
بناءً على...
Arabic is a prepositional phrase, Korean is a verb suffix.
Learning Path
Prerequisites
Related Grammar Rules
Formal Reasons (-gie)
Overview As a C1-level Korean learner, you are moving beyond basic communication and delving into the nuanced linguistic...
Elegant Additions: Beyond 'Not Only' (-거니와)
Overview At the C2 level of Korean proficiency, moving beyond simple conjunctions is essential for crafting arguments w...
Poetic Persistence: 'If one keeps doing...' (-노라면)
Overview `-노라면` (noramyon) is an advanced Korean connective ending that expresses a conditional relationship where a...
Advanced 'Not Only... But Also' (-거니와)
Overview In advanced Korean, moving beyond simple conjunctions is key to achieving fluency and eloquence. The connectiv...
The Formal 'But': Using -되 for Provisos
Overview The connective ending `-되` is a sophisticated tool in formal Korean used to introduce a proviso or a qualifyi...
