Level 5 Korean Grammar

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1

Almost did / -(으)ㄹ 뻔했다, 할 뻔했다

2

-시- (honorific) / -시-, 하시다

3

Good work / 수고

4

I guess, I assume / -나 보다

5

I guess, I assume – Part 2 / -(으)ㄴ가 보다

6

Word builder 6 / 문(文)

7

As soon as… / -자마자, 하자마자

8

It is about to …, I am planning to … / -(으)려고 하다, 하려고 하다

9

While I was doing, and then / -다가, 하다가

10

(To say) that S + be / -(이)라고 + nouns

11

Sentence Building Drill #3

12

Noun + -(이)라는 + Noun / Someone that is called ABC / Someone who says s/he is XYZ

13

Word Builder lesson 7 / 회 (會)

14

Since, Because, As / -(으)니까

15

At least, Instead, It might not be the best but… / -(이)라도

16

Narrative Present Tense in Korean / -(ㄴ/는)다

17

Quoting someone in Korean / -(ㄴ/는)다는, -(ㄴ/는)다고

18

Whether or not / -(으)ㄴ/는지

19

To tell someone to do something / Verb + -(으)라고 + Verb

20

Sentence Building Drill #4

21

Word Contractions - Part 3 (이거를 –> 이걸)

22

Word builder 8 / 식 (食)

23

It seems like … / I assume … / -(으)려나 보다

24

Not A But B, Don’t do THIS but do THAT / 말고, -지 말고

25

Compared to, Relatively / -에 비해서 -ㄴ/은/는 편이다 /

26

Instead of … / 대신에, -는 대신에

27

You know, Isn’t it, You see…, Come on… / -잖아(요)

28

To have no other choice but to… / -(으)ㄹ 수밖에 없다

29

they said that they had done …, they said that they would … / -았/었/였다고, -(으)ㄹ 거라고

30

Sentence Building Drill #5

31

Test Your Korean – Level 5 Dialogue in 100% Korean

I guess, I assume / -나 보다

In this lesson, we look at how to say “I guess …”, “I assume …” or “I suppose …” in Korean : -나 보다 [-na bo-da] Today’s key structure is somewhat similar to -것 같다 in meaning, but it has a stronger nuance of “I assume … based on this fact” or “I suppose … because …”.

If you’ve studied with our Level 4 book, in Lesson 27 you learned how to express “I think that...” or “it seems that ...” by using 것 같다. The key sentence structure in this lesson is somewhat similar to 것 같다, but it carries a stronger connotation of “I suppose … because …” or “I assume … based on ABC (fact).”


-나 보다 = I assume; I suppose; I guess


This is typically only used when you are talking about someone other than yourself; however, when you talk about yourself using -나 보다, you are referring to yourself in the third person by making assumptions about how or why you have done something.


Ex) 

I guess you don’t like coffee.

I guess I’ve never heard about it.

* Very important note: -나 보다 is only used with action verbs.


Conjugation:

[present tense]

Verb stem + -나 보다


[past tense]

Verb stem + -았/었/였 + -나 보다


(Future tense uses a different structure, which you will learn with us later.) 


Ex)

1.

하다 = to do

하 + -나 보다 = 하나 보다 = I guess they do + something


→ [present tense] 하나 봐요.

→ [past tense] 했나 봐요


2.

모르다 = to not know

모르 + -나 봐요 = 모르나 봐요. 

= I guess he/she/they doesn’t know.


[past tense]

몰랐나 봐요.

= I guess he/she/they didn’t know.


3.

없다 = to not exist; to be not present 

없 + -나 봐요 = 없나 봐요. 

= I guess he/she/they/it is not there.


[past tense]

없었나 봐요. 

= I guess he/she/they/it wasn’t there.


4.

재미있다 = to be fun; to be interesting

재미있 + -나 봐요 = 재미있나 봐요.

= I guess it’s fun. / I suppose it’s interesting.


[past tense]

재미있었나 봐요.

= I guess it was fun.


5.

사다 = to buy

사 + -나 봐요 = 사나 봐요.

= I guess he/she/they buys.


[past tense]

샀나 봐요. 

= I guess he/she/they bought.


Sample Sentences

주연 씨는 아직 모르나 봐요.

= I guess Jooyeon still doesn’t know.


또 비가 오나 봐요.

= I guess it’s raining again.


어제 재미있었나 봐요.

= I guess it was fun yesterday. / I assume you had a good time yesterday.


아무도 없나 봐요.

= I guess there’s no one there.


고장 났나 봐요.

= I guess it broke.

In this lesson, we look at how to say “I guess …”, “I assume …” or “I suppose …” in Korean : -나 보다 [-na bo-da] Today’s key structure is somewhat similar to -것 같다 in meaning, but it has a stronger nuance of “I assume … based on this fact” or “I suppose … because …”.
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