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Korean Formal vs Informal Speech
Korean changes its verb endings depending on how formal the situation is and who you're speaking to. This is one of the first things that makes Korean feel different from English. The reassuring part: beginners really only need one polite level to be safe almost everywhere. This guide explains the system plainly, without pretending you'll master every register quickly. It takes time, and how fast it clicks varies by learner.
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Methods & tips that actually help
Start with the two big buckets
Realistic effect: Korean speech splits broadly into 존댓말 (jondaetmal, polite speech) and 반말 (banmal, casual speech). Jondaetmal is the safe default with strangers, elders, and in formal settings; banmal is for close friends, family, or people clearly younger.
Best for: Absolute beginners deciding how to speak.
Know that four levels are common today
Realistic effect: Of Korean's traditional speech levels, four are commonly used in modern life: 하십시오체 (formal polite), 해요체 (informal polite), 해라체 (formal plain, mostly written), and 해체 (casual, banmal). Most learners focus on the polite two first.
Best for: Learners trying to make sense of "how many levels" there are.
Learn 해요체 first
Realistic effect: The 해요체 informal polite level, using -아요/-어요 endings, is the most commonly used speech level in everyday Korean. It's friendly, polite, and safe with strangers and people older than you, which is why learners are usually urged to start here.
Best for: Beginners who want one safe level to begin with.
Recognize formal 하십시오체
Realistic effect: The 하십시오체 formal polite level, with -습니다/-ㅂ니다 endings, appears in public speaking, customer service, news, and professional settings. You'll hear it constantly before you produce it yourself.
Best for: Learners watching Korean news or in formal settings.
Understand where 해라체 shows up
Realistic effect: The 해라체 plain style is mostly written, not spoken — it appears in textbooks, news headlines, and instructions. You mainly need to recognize it when reading rather than use it in conversation.
Best for: Learners reading Korean text and textbooks.
Don't rush into banmal
Realistic effect: 해체 casual speech (banmal) sounds natural between close friends but can come across as rude if used too early or with the wrong person. Many learners wait until a Korean speaker offers to drop the formality.
Best for: Learners worried about accidental rudeness.
Match the level to the relationship
Realistic effect: Choosing a speech level is about your relationship and the setting, not just grammar. When in doubt, defaulting to polite forms is the safe move — over-politeness rarely offends.
Best for: Learners unsure which form to pick in the moment.
Accept that nuance takes time
Realistic effect: Native speakers fine-tune speech levels over a lifetime. As a beginner, sticking to polite forms and adjusting gradually is completely normal. Progress varies by learner.
Best for: Anyone setting realistic expectations.
Speech levels are easiest to internalize when someone reacts to your speech in real time and tells you when polite or casual fits — a tutor can do exactly that. You can find Korean tutors on italki.
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Frequently asked questions
What's the difference between formal and informal Korean?
Broadly, Korean splits into 존댓말 (jondaetmal, polite speech) used with strangers, elders, and in formal settings, and 반말 (banmal, casual speech) used with close friends, family, or people clearly younger.
How many Korean speech levels are there?
Traditionally there are several, but four are commonly used in modern life: 하십시오체 (formal polite), 해요체 (informal polite), 해라체 (plain, mostly written), and 해체 (casual). Beginners usually focus on the two polite levels first.
Which Korean speech level should I learn first?
Most guides recommend 해요체, the informal polite level with -아요/-어요 endings. It's the most commonly used level in everyday Korean and is appropriate in the majority of situations.
When should I use formal 하십시오체?
The formal polite -습니다/-ㅂ니다 style is used in public speaking, customer service, news, business, and other formal settings. You'll recognize it long before you need to produce it.
Is it rude to use banmal with the wrong person?
It can be. Casual speech (banmal) is appropriate with close friends, family, or people clearly younger. Using it too early or with elders or strangers can sound rude, so many learners wait until invited to drop formality.