Korean Present Tense: 아요/어요 Conjugation Guide Korean Grammar

The -아/어요 ending is the everyday polite form learners use most often. It can describe what someone does regularly, what is happening now, a present state, and—when the context is clear—even a scheduled or intended future action.

This guide gives you one complete path through the core rule, contractions, common irregular patterns, usage, negatives, and practice.

Understanding Korean Present Tense Basics

Korean dictionary forms end in -다. To make the usual polite conversational form, remove 다 and attach -아요 or -어요 to the stem. This speech style is commonly called 해요체, an everyday polite level of 존댓말.

The ending you choose depends primarily on the last vowel in the stem. The sound combination may then contract, so the final form is often shorter than the two pieces written side by side.

The Vowel Harmony Rule

Korean vowel harmony determines whether you use -아요 (-ayo) or -어요 (-eoyo):

Use -아요 (-ayo) when:

The last vowel in the verb stem is ㅏ (a) or ㅗ (o)

Use -어요 (-eoyo) when:

The last vowel in the verb stem is any other vowel (ㅓ, ㅜ, ㅡ, ㅣ, etc.)

Let's see this in action:

Step-by-Step Conjugation Process

Step 1: Remove -다 from the dictionary form

• 가다 (gada) → 가 (ga)
• 먹다 (meokda) → 먹 (meok)

Step 2: Identify the last vowel in the stem

• 가: last vowel is ㅏ (a)
• 먹: last vowel is ㅓ (eo)

Step 3: Apply the appropriate ending

• 가 + -아요 = 가요 (gayo)
• 먹 + -어요 = 먹어요 (meogeoyo)

Common Verb Conjugations

Here are essential verbs you'll use daily:

Vowel Contractions

Contraction Rules

When certain combinations occur, Korean naturally contracts them:

ㅏ + 아요 = 아요

• 가다 → 가 + 아요 = 가요 (not 가아요)

ㅗ + 아요 = 와요

• 보다 → 보 + 아요 = 봐요
• 오다 → 오 + 아요 = 와요

ㅓ + 어요 = 어요

• 서다 (stand) → 서 + 어요 = 서요 (not 서어요)

ㅜ + 어요 = 워요

• 주다 → 주 + 어요 = 줘요

하다 → 해요

하다 (hada, "to do") contracts to 해요:

• 하다 → 해요 (haeyo)

This applies to all compound verbs ending in 하다:

• 공부하다 (study) → 공부해요 (gongbuhaeyo)
• 요리하다 (cook) → 요리해요 (yorihaeyo)
• 운동하다 (exercise) → 운동해요 (undonghaeyo)

Common Irregular Patterns

Vowel harmony still matters, but some stems change before the ending is attached. Learn these as patterns rather than treating every form as an unrelated exception.

Not every verb with these final consonants is irregular. For example, 받다 → 받아요 keeps ㄷ, and 입다 → 입어요 keeps ㅂ. Check an unfamiliar verb in a conjugator or dictionary instead of changing it automatically.

What the Korean Present Tense Can Mean

The same 아요/어요 form often covers several English tense choices. Time words and context do much of the work.

For an action you want to mark explicitly as in progress, use -고 있어요: 지금 밥을 먹고 있어요 means “I am eating right now.” In ordinary conversation, however, 지금 밥을 먹어요 can already carry that meaning.

Practical Usage Examples

Daily Activities

• 아침에 커피를 마셔요. (Achime keopireul masyeoyo.) "I drink coffee in the morning."

• 저녁에 한국 드라마를 봐요. (Jeonyeoge hanguk deuramareul bwayo.) "I watch Korean dramas in the evening."

• 주말에 친구들과 만나요. (Jumare chingudeulgwa mannayo.) "I meet friends on weekends."

Describing Habits

• 매일 한국어를 공부해요. (Maeil hangugeoreul gongbuhaeyo.) "I study Korean every day."

• 보통 12시에 점심을 먹어요. (Botong yeoldusie jeomsimeul meogeoyo.) "I usually eat lunch at 12 o'clock."

Asking Questions

Korean present tense questions use the same conjugation with rising intonation:

• 뭐 해요? (Mwo haeyo?) "What are you doing?"
• 어디 가요? (Eodi gayo?) "Where are you going?"
• 언제 와요? (Eonje wayo?) "When are you coming?"

Negative Present Tense

To make negative statements, add 안 (an) before the verb or use the -지 않아요 (-ji anhayo) ending:

Tips for Mastering 아요/어요

1. Practice vowel identification: Before conjugating, always identify the last vowel in the stem
2. Learn common verbs first: Focus on high-frequency verbs like 하다, 가다, 오다, 먹다
3. Write the contraction as the real form: Practice 봐요, 와요, 줘요, and 해요—not only the uncontracted pieces
4. Practice with daily routines: Describe your daily activities using present tense

Common Mistakes to Avoid

• Don't add -요 to dictionary forms: Never say 가다요 - always conjugate first
• Watch vowel harmony: 먹아요 is wrong - it should be 먹어요
• Remember the 하다 contraction: 하아요 is incorrect - always use 해요
• Use the normal contraction: 보아요 is grammatically possible but unusually deliberate in everyday speech; 봐요 is the normal conversational form

Practice Exercises

Exercise 1: Basic Conjugation

Conjugate these verbs into present tense polite form:

1. 놀다 (nolda - to play)
2. 웃다 (utda - to laugh)
3. 울다 (ulda - to cry)
4. 일하다 (ilhada - to work)

Answers:

1. 놀아요 (norayo)
2. 웃어요 (useoyo)
3. 울어요 (ureoyo)
4. 일해요 (ilhaeyo)

Exercise 2: Create Sentences

Use the present tense to describe these activities:

1. Drinking tea in the afternoon
2. Reading books before sleeping
3. Cooking Korean food on weekends
4. Studying at the library

Sample Answers:

1. 오후에 차를 마셔요. (Ohue chareul masyeoyo.)
2. 자기 전에 책을 읽어요. (Jagi jeone chaegeul ilgeoyo.)
3. 주말에 한국 음식을 요리해요. (Jumare hanguk eumsigeul yorihaeyo.)
4. 도서관에서 공부해요. (Doseogwaneseo gongbuhaeyo.)

Exercise 3: Questions and Answers

Practice asking and answering questions:

1. Q: 뭐 먹어요? (What do you eat?) A: 김치찌개를 ___요. (I eat kimchi stew)

2. Q: 어디서 살아요? (Where do you live?) A: 서울에서 ___요. (I live in Seoul)

Answers:

1. 먹어요 (meogeoyo)
2. 살아요 (sarayo)

Exercise 4: Negative Sentences

Convert these positive sentences to negative:

1. 커피를 마셔요. (I drink coffee)
2. 텔레비전을 봐요. (I watch television)

Answers:

1. 커피를 안 마셔요. / 커피를 마시지 않아요.
2. 텔레비전을 안 봐요. / 텔레비전을 보지 않아요.

These conjugations are the backbone of spoken Korean. First automate the regular vowel rule and common contractions. Then add irregular patterns through high-frequency verbs and full sentences. Note that the noun copula 이다 follows a different present-polite pattern—이에요/예요—rather than the verb rule taught here.