Past and Future

Korean Grammar 1

Course 1 · Chapter 7 · Verbs 2: Past, Future and Negation

⏳ Verbs 2: Past, Future and Negation — 과거, 미래, 부정

Korean Grammar 1, chapter 6 gave you the polite present, which Korean uses for the present and often for the near future. This chapter adds the two other tenses you need every day, the past and the future, and the two ways of saying not. Everything builds on the 아요/어요 forms you already know.

The rule in one box Past: the present stem form + ㅆ어요. In practice: -았어요 (stem vowel ㅏ or ㅗ) or -었어요 (any other vowel); 했어요 for 하다.
Future: stem + -ㄹ 거예요 (after a vowel) or -을 거예요 (after a consonant).
Not: put 안 in front of the verb, or add -지 않아요 to the stem.

The past: -았어요 / -었어요

The vowel rule is the same as for the present: ㅏ or ㅗ in the stem gives 았, any other vowel gives 었. Take the polite present, remove 요, and add ㅆ어요. When the stem ends in a vowel, the same contractions as in Chapter 6 apply, and the extra ㅆ lands in the contracted block as its final consonant.

Dictionary formPresentPastSaid
가다 to go 가요 갔어요 gasseoyo [가써요]
오다 to come 와요 왔어요 wasseoyo [와써요]
보다 to see 봐요 봤어요 bwasseoyo [봐써요]
마시다 to drink 마셔요 마셨어요 masyeosseoyo [마셔써요]
주다 to give 줘요 줬어요 jwosseoyo [줘써요]
쓰다 to write 써요 썼어요 sseosseoyo [써써요]
먹다 to eat 먹어요 먹었어요 meogeosseoyo [머거써요]
앉다 to sit 앉아요 앉았어요 anjasseoyo [안자써요]
있다 to be, to have 있어요 있었어요 isseosseoyo [이써써요]
공부하다 to study 공부해요 공부했어요 gongbuhaesseoyo [공부해써요]

The past of 이다 and 아니다

PresentPast
학생이에요 (after a consonant) 학생이었어요 haksaeng-ieosseoyo (was a student)
의사예요 (after a vowel) 의사였어요 uisa-yeosseoyo (was a doctor)
학생이 아니에요 학생이 아니었어요 haksaeng-i anieosseoyo (was not a student)

Time words

WordMeaning
어제 eojeyesterday
오늘 oneultoday
내일 naeiltomorrow
지금 jigeumnow

Use them where English does, usually near the start: 어제 학교에 갔어요. eoje hakgyo-e gasseoyo. (Yesterday I went to school.)

The future: -(으)ㄹ 거예요

The ending is -ㄹ 거예요 after a vowel and -을 거예요 after a consonant. It literally means "it is the case that (I) will…": 거 is a word for "thing, fact", followed by 예요 (Korean Grammar 1, chapter 5). The ㄹ is written at the foot of the stem's last block.

Dictionary formStem ends inFutureSaid
가다 to govowel 갈 거예요 gal geoyeyo [갈 꺼예요]
마시다 to drinkvowel 마실 거예요 masil geoyeyo [마실 꺼예요]
공부하다 to studyvowel 공부할 거예요 gongbuhal geoyeyo [공부할 꺼예요]
먹다 to eatconsonant 먹을 거예요 meogeul geoyeyo [머글 꺼예요]
읽다 to readconsonant 읽을 거예요 ilgeul geoyeyo [일글 꺼예요]
살다 to liveㄹ 살 거예요 sal geoyeyo [살 꺼예요]
Watch out: a stem ending in ㄹ takes no extra ㄹ 살다 (to live) already ends in ㄹ, so it takes 살 거예요, not 살을 거예요. All ㄹ-stems behave this way: 놀다 → 놀 거예요 (will play).
Watch out: the 거 is said tense After the ㄹ of this ending, the 거 is said as if it began with a tense consonant: 갈 거예요 is said "gal-kkeoyeyo" (Korean Grammar 1, chapter 2, rule B). Revised Romanization still writes it geoyeyo, so do not copy the romanisation for the sound.

The present tense with a time word is also used for plans, as in English "I'm going tomorrow": 내일 가요. You will hear both 내일 가요 and 내일 갈 거예요.

Saying "not": 안 and -지 않다

안 + verb

안 is a separate word placed right before the verb. It never changes with the sound of the verb and works with every tense.

TenseExampleMeaning
present안 가요. an gayo.(I) don't go.
present커피를 안 마셔요. keopi-reul an masyeoyo.(I) don't drink coffee.
past안 갔어요. an gasseoyo.(I) didn't go.
future안 갈 거예요. an gal geoyeyo.(I) won't go.
Watch out: with 하다 verbs, 안 goes before 하다 For a verb like 공부하다 the 안 goes between the noun and 하다: 공부 안 해요 gongbu an haeyo ("I don't study"), not 안 공부해요. (The noun part is the thing you do; 하다 is the verb you negate.) This is true for most 하다 verbs; a few, such as 좋아하다, go the other way: 안 좋아해요 (I don't like it).

Stem + 지 않다

The second way is a little more formal and is common in writing. Add -지 to the stem and follow it with 않다 (to not do), which is conjugated like any verb: 않아요 anayo [아나요], past 않았어요 anasseoyo.

TenseExampleMeaning
present가지 않아요. gaji anayo.(I) don't go.
present먹지 않아요. meokji anayo. [먹찌 아나요](I) don't eat.
past가지 않았어요. gaji anasseoyo.(I) didn't go.
future가지 않을 거예요. gaji aneul geoyeyo.(I) won't go.
하다 verb공부하지 않아요. gongbuhaji anayo.(I) don't study.

This form has no trouble with 하다 verbs, which is why many learners prefer it for them. The meaning is the same as 안.

Watch out: "can't" is a different word 못 mot in front of a verb means "cannot": 못 가요 (I can't go: I'm unable or prevented). 안 가요 is "I don't go" by choice or habit. And 있다 has its own opposites: 없다 (there isn't) rather than 안 있다, and 이다 has 아니다 (Korean Grammar 1, chapter 5).

🗣️ In Use — 실제 예문

Notice the tense of each verb and whether it is positive or negative.

① Yesterday

A: 어제 뭐 했어요? eoje mwo haesseoyo? What did you do yesterday?
B: 친구를 만났어요. 영화를 봤어요. chingu-reul mannasseoyo. yeonghwa-reul bwasseoyo. I met a friend. I watched a film.

② Tomorrow

A: 내일 학교에 갈 거예요? naeil hakgyo-e gal geoyeyo? Will you go to school tomorrow?
B: 아니요, 안 갈 거예요. 집에서 공부할 거예요. aniyo, an gal geoyeyo. jib-eseo gongbuhal geoyeyo. No, I won't go. I'll study at home.

📋 Quick Reference — 요약표

TenseForm가다먹다공부하다
present-아요 / -어요가요먹어요공부해요
past-았어요 / -었어요갔어요먹었어요공부했어요
future-ㄹ / -을 거예요갈 거예요먹을 거예요공부할 거예요
not (present)안 + verb안 가요안 먹어요공부 안 해요
not (present)stem + 지 않아요가지 않아요먹지 않아요공부하지 않아요

✏️ Try It Yourself — 연습

Work out the answer first, then click to check.

1. Put into the past: 먹어요, 앉아요, 가요.

Show answer

먹었어요, 앉았어요, 갔어요.

2. Put into the past: 와요, 마셔요, 줘요.

Show answer

왔어요, 마셨어요, 줬어요.

3. Put into the past: 공부해요 and 좋아해요.

Show answer

공부했어요, 좋아했어요.

4. Say "I was a student" and "I was not a doctor".

Show answer

학생이었어요. and 의사가 아니었어요.

5. Make the future of 마시다, 읽다 and 살다.

Show answer

마실 거예요, 읽을 거예요, 살 거예요 (an ㄹ-stem adds no ㄹ).

6. Say "I didn't drink coffee yesterday" using 안.

Show answer

어제 커피를 안 마셨어요.

7. Say "I don't study" in both ways.

Show answer

공부 안 해요. and 공부하지 않아요.

8. Make 먹어요 negative with 지 않다 in the present and the past.

Show answer

먹지 않아요 and 먹지 않았어요.

9. What is the difference between 안 가요 and 못 가요?

Show answer

안 가요 is "I don't go" (by choice or habit); 못 가요 is "I can't go" (unable or prevented).

10. Say "Yesterday I went to school, and tomorrow I will study at home."

Show answer

어제 학교에 갔어요. 내일 집에서 공부할 거예요.

Coming up in Chapter 8: Adjectives and Questions. Describing words behave like verbs in Korean, so you already know most of how they work. You will also learn the question words and how to ask a question in different ways.