The Polite Present -아/어요 (해요체)

If you learn only one verb ending in your first weeks of Korean, make it -아/어요. This is the 해요체 present — the informal-polite register that carries the overwhelming majority of everyday conversation. You use it with strangers, shopkeepers, coworkers, classmates, and almost every adult you are not either intimate with or formally addressing from a podium. Master this ending and you can hold a real, polite Korean conversation; everything else is refinement.

How to form it

Three steps, and you already know two of them:

1. Drop -다 to get the stem.
2. Add -아 if the stem's last vowel is ㅏ/ㅗ, otherwise -어 — that is vowel harmony.
3. Add 요.

All the vowel fusions you learned on the neighboring pages fold in here automatically — 하다 → 해요, 마시다 → 마셔요, 오다 → 와요, 되다 → 돼요 — because those are the -아/어 forms with 요 on top. The 해요체 present is not a new machine; it is the harmony-and-contraction machine plus a politeness tag.

One form, a wide present

English hands you three present-tense shapes — I go, I am going, I do go — plus a habitual and a near-future reading, and makes you choose. Korean's 가요 covers all of them at once. Context, not the verb form, tells you which English rendering fits:

Crucially, the 해요체 present also does duty as a near-future. Korean routinely uses the plain present for scheduled or imminent events where English would use am going to:

Questions use the same form — just raise your voice

This is one of the quiet gifts of 해요체. To ask a question, you do not change the word or the word order. You keep the identical 해요체 form and let intonation rise at the end:

Compare this with the formal 합니다체, which does switch endings for questions (갑니다 → 갑니까?). In 해요체 the statement and the question are the same string of syllables; only the melody differs. For the full intonation picture, see yes/no questions by intonation.

Polite, but warm — not stiff

Learners sometimes imagine that "polite" means "formal and distant." In Korean those are two different settings. 해요체 is polite but warm — the register of a friendly shop clerk, a coworker you like, a conversation with someone you have just met. It is the default adult politeness. The crisper 합니다체 (갑니다) adds formal distance and is the sound of broadcasts, presentations, the military, and first formal introductions; it is not "more correct," just more formal. And dropping the 요 entirely gives intimate 반말, reserved for close friends, family, and children.

So 해요체 is the first register to make automatic. Speak it and you sound polite and natural to almost anyone; you will not offend a stranger, and you will not sound like a news anchor talking to a friend.

How this differs from English

Two English habits cause trouble here.

First, English forces a progressive ("I am eating") whenever an action is ongoing, and learners try to build extra machinery to match it. Korean does have a progressive (-고 있어요), but the plain 먹어요 already covers "I eat / I'm eating," so reaching for the progressive by reflex overloads the sentence. Say 밥 먹어요, not a padded equivalent, unless you specifically want to stress in the middle of.

Second, English never leaves a verb bare, so learners forget that Korean's citation form 가다 is not a spoken sentence. 가다 is the dictionary form — you would no more say it in conversation than answer "Where are you going?" in English with the infinitive "to go." The spoken sentence is 가요.

Common Mistakes

1. Using the dictionary form in speech. 가다 is a citation form, not a sentence; the spoken present is 가요.

2. Bolting on an English-style progressive by reflex. The plain present already covers "am -ing."

3. Dropping the 요 with a stranger. Bare 가 is intimate 반말 and can sound rude to someone you don't know well.

4. Picking the harmony vowel wrong. The last stem vowel decides 아 vs 어.

Key Takeaways

• -아/어요 (해요체) is the everyday polite present: stem + 아/어 by harmony + 요; all vowel fusions carry over (해요, 마셔요, 와요, 돼요).
• One form covers a wide present — "go / goes / am going / do go" — and often a near-future (내일 가요).
• Questions use the identical form with rising intonation; no word-order change (가요?).
• It is polite but warm, the default for most adult conversation — not the stiff 합니다체, not the intimate 반말.
• Don't speak the dictionary form (가다), don't reflexively add a progressive, and don't drop the 요 with people you owe politeness.