A2 · Élémentaire Chapitre 3

Giving Reasons and Background

5 Règles totales
54 exemples
5 min
Règles dans ce chapitre Pratique rapide

Chapter in 30 Seconds

Master the art of linking your thoughts to sound like a natural Korean speaker.

  • Connect sentences to explain your reasons.
  • Provide context to make your stories flow.
  • Distinguish between internal and external causes.
Connect your thoughts, express your world.

Ce que tu vas apprendre

You've built a solid foundation in Korean basics – great job! Now, it's time to add a new layer of sophistication and natural flow to your conversations by mastering how to express reasons and provide essential context, just like a native speaker. This chapter is your key to making your Korean sound more connected and compelling.

Learning Objectives

By the end of this chapter, you will be able to:

  1. 1
    By the end you will be able to: Use connective endings to explain simple daily situations.

Guide du chapitre

Overview

Congratulations on reaching the A2 Korean grammar level! You’ve mastered the basics, and now it’s time to elevate your conversations. This chapter is your gateway to sounding more natural and connected by learning how to articulate reasons and provide essential background information.
Just like in English, native Korean speakers constantly use connectors to link ideas, explain 'why', and set the stage for what they're about to say. Understanding these nuances is crucial for constructing more complex sentences and engaging in meaningful dialogue. We'll explore key grammar points like -아/어서, (으)니까, and -는데/은데, which are indispensable for expressing cause and effect, justifications, and contextual details.
Mastering these structures will significantly enhance your ability to communicate effectively and make your Korean sound much more sophisticated.
This guide focuses on the
Giving Reasons and Background
chapter, which is pivotal for any learner aiming for fluency. By the end of this chapter, you’ll be able to seamlessly connect your thoughts, explain your choices, and add depth to your stories, moving beyond simple sentence structures. These Korean grammar patterns are incredibly common in everyday speech, so understanding them will unlock a vast array of communicative possibilities.
Get ready to transform your conversations and truly connect your ideas, making your Korean flow effortlessly.

How This Grammar Works

In this chapter, we delve into the essential connectors that allow you to express reasons, consequences, and contextual information in Korean. First up is Korean 'Because' & 'So': The Glue of Sentences (-아/어/여서). This versatile connector is used to indicate a cause and effect relationship, or a sequence of events.
The action or state in the first clause is the reason or precedes the action in the second clause. Crucially, you cannot use -아/어서 with commands or suggestions, and the first clause does not take tense marking; the tense is indicated in the final verb of the sentence. For example: 비가 와서 집에 갔어요. (Because it rained, I went home.) or 피곤해서 일찍 잤어요. (Because I was tired, I slept early.)
Next, we explore Giving Reasons: Because/Since ((으)니까). While also meaning 'because' or 'since', (으)니까 often implies that the speaker has just discovered the reason or is giving a reason for a suggestion or command. Unlike -아/어서, you *can* use (으)니까 with commands, suggestions, or proposals.
It also allows for tense marking in the first clause. For instance: 지금 바쁘니까 나중에 전화해 주세요. (Since I'm busy now, please call me later.) or 날씨가 좋으니까 산책할까요? (Since the weather is good, shall we take a walk?)
Finally, we introduce Setting the Scene: Background Context (는데/은데), also known as The Background Connector. This particle doesn't strictly mean 'because' but rather provides background information, context, or a contrast to the main clause. It's incredibly common and helps make your sentences sound natural.
It can also be used to soften a request or introduce a topic. The form depends on the word type: verbs and adjectives ending in a vowel or ㄹ use -는데 (먹는데, 예쁜데), adjectives ending in a consonant use -은데 (좋은데), and nouns use -인데 (학생인데). For example: 저는 한국 사람인데 영어를 공부하고 있어요. (I am Korean, but I am studying English.) or 배고픈데 뭐 먹을까요? (I'm hungry, so what should we eat?) This connector is key for making your A2 Korean sound sophisticated.

Common Mistakes

  1. 1✗ Wrong: 피곤해서 집에 가세요. (Because I'm tired, please go home.)
✓ Correct: 피곤하니까 집에 가세요. (Because you're tired, please go home.)
*Explanation:* -아/어서 cannot be used with commands, suggestions, or proposals in the second clause. Use (으)니까 instead when the first clause is a reason for a command or suggestion.
  1. 1✗ Wrong: 어제는 비가 왔어서 집에 있었어요. (Because it rained yesterday, I stayed home.)
✓ Correct: 어제는 비가 와서 집에 있었어요. (Because it rained yesterday, I stayed home.)
*Explanation:* With -아/어서, the first clause expressing the reason does not take past tense marking. The tense is indicated in the main clause's verb.
  1. 1✗ Wrong: 이 식당은 맛있는는데 사람이 너무 많아요. (This restaurant is delicious, but there are too many people.)
✓ Correct: 이 식당은 맛있는데 사람이 너무 많아요. (This restaurant is delicious, but there are too many people.)
*Explanation:* For adjectives ending in a vowel (like 맛있다), you attach -는데. -은데 is used for adjectives ending in a consonant, and -인데 for nouns.

Real Conversations

A

A

왜 한국어를 배우세요? (Why are you learning Korean?)
B

B

한국 드라마를 좋아해서 배우고 있어요. (Because I like Korean dramas, I am learning it.)
A

A

저녁에 뭐 먹을까요? 배고픈데... (What shall we eat for dinner? I'm hungry...)
B

B

비빔밥 어때요? 맛있을 것 같아요. (How about bibimbap? It seems delicious.)
A

A

지금 갈까요? 비가 오는데 우산이 없어요. (Shall we go now? It's raining, but I don't have an umbrella.)
B

B

지금 가기 어려우니까 조금 기다려요. (Since it's hard to go now, let's wait a bit.)

Quick FAQ

Q

What's the main difference between -아/어서 and (으)니까 when expressing reasons in A2 Korean grammar?

-아/어서 typically states a direct cause-and-effect and cannot be used with commands/suggestions. (으)니까 is often used when the reason leads to a suggestion, command, or a newly discovered fact, and it can take tense marking in the first clause.

Q

Can -는데/은데 be used to express a reason, or is it only for background context?

While its primary role is to provide background or contrast, -는데/은데 can sometimes imply a soft reason or justification, especially when setting up a question or a request, but it's not a direct 'because' like -아/어서 or (으)니까.

Q

How do I conjugate -는데/은데 with different types of words?

For verbs and adjectives ending in a vowel or ㄹ, use -는데 (e.g., 가다 → 가는데, 예쁘다 → 예쁜데). For adjectives ending in a consonant, use -은데 (e.g., 좋다 → 좋은데). For nouns, use -인데 (e.g., 학생 → 학생인데).

Q

Is -아/어서 only for reasons, or does it have other uses in Korean grammar?

Besides reasons, -아/어서 is also commonly used to indicate a sequence of actions, where the first action must occur before the second. For example, 집에 가서 밥을 먹었어요. (I went home and then ate.)

Cultural Context

These grammatical connectors are vital for making your Korean sound polite and natural. -는데/은데 is particularly useful for softening requests or introducing a topic without being too abrupt, showing consideration for the listener. Using (으)니까 for suggestions or commands is very common and less direct than simply stating the command, which is often preferred in Korean communication for its indirectness.
Mastering these patterns helps you integrate into the nuances of Korean conversational flow, making your speech more engaging and less like a textbook.

Exemples clés (8)

1

배가 고파서 식당에 갔어요.

J'avais faim, donc je suis allé au restaurant.

Le 'parce que' coréen : Lier les phrases avec (-아/어/여서)
2

늦어서 정말 죄송합니다.

Je suis vraiment désolé d'être en retard.

Le 'parce que' coréen : Lier les phrases avec (-아/어/여서)
3

J'avais faim donc j'ai commandé une pizza.

J'avais faim, alors j'ai pris une pizza.

Connecter les Raisons : Parce que & Donc (-아/어서)
4

Je suis désolé d'être en retard.

Désolé pour le retard.

Connecter les Raisons : Parce que & Donc (-아/어서)
5

배가 고픈데 식당에 갈까요?

J'ai faim, (donc) on va au restaurant ?

Planter le décor : Le contexte de fond (는데/은데)
6

지금 바쁜데 나중에 전화할게요.

Je suis occupé là, donc je rappellerai plus tard.

Planter le décor : Le contexte de fond (는데/은데)
7

지금 가는데 같이 갈래?

J'y vais maintenant, tu veux venir avec moi ?

Le Connecteur de Contexte (는데/은데)
8

이거 매운데 맛있어.

C'est épicé, mais c'est super bon.

Le Connecteur de Contexte (는데/은데)

Conseils et astuces (4)

⚠️

Pas de passé !

N'utilise jamais -었- avant -서. Même pour hier, garde le premier verbe au présent. C'est la fin de la phrase qui donne le temps ! Par exemple : «어제 아파서 학교 en 안 갔어요.»
frontend.learn_grammar.from_rule: Le 'parce que' coréen : Lier les phrases avec (-아/어/여서)
⚠️

Pas de passé !

Ne dis jamais '가았어서'. Dis simplement '가서'. C'est le verbe à la fin de la phrase qui donne le temps : «어제 학교에 가서 공부했어요.»
frontend.learn_grammar.from_rule: Connecter les Raisons : Parce que & Donc (-아/어서)
⚠️

Le piège des excuses

N'utilise jamais (으)니까 pour dire 'Désolé' ou 'Merci'. Ça donne l'impression que tu te cherches des excuses un peu sèches. Reste sur -아/어서, comme dans : «늦어서 죄송합니다.»
frontend.learn_grammar.from_rule: Donner des raisons : Parce que/Puisque ((으)니까)
🎯

La règle du 'Sticker'

Vois «는데/은데» comme un autocollant qui lie deux idées. Sans lui, tes phrases sonnent un peu sèches et déconnectées. Garde le sticker pour que ça glisse tout seul ! «배가 고픈데 밥 먹자.»
frontend.learn_grammar.from_rule: Planter le décor : Le contexte de fond (는데/은데)

Vocabulaire clé (5)

피곤하다 (pigonhada) to be tired 비가 오다 (biga oda) to rain 숙제 (sukje) homework 날씨 (nalssi) weather 가게 (gage) store

Real-World Preview

shopping-cart

Shopping for dinner

Review Summary

  • Verb/Adj + -아/어/여서
  • Verb/Adj + -(으)니까
  • Verb/Adj + -는데/은데

Erreurs courantes

You must contract the verb stem correctly. 오 + 아서 becomes 와서.

Wrong: 비가 오어서 우산이 필요해요.
Correct: 비가 와서 우산이 필요해요.

When making a suggestion or request, use -(으)니까 instead of -어서.

Wrong: 피곤해서 영화를 볼까요?
Correct: 피곤하니까 영화를 볼까요?

Ensure the subject particle is included or the context is clear before the -는데 ending.

Wrong: 숙제 있는데, 어려워요.
Correct: 숙제가 있는데, 어려워요.

Next Steps

You've done an amazing job! Keep practicing these connectors and watch your Korean flow naturally.

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Continue to: Describing People and Things

Pratique rapide (10)

Quelle phrase est grammaticalement correcte ?

Choisis la phrase qui utilise correctement l'adjectif '작다' (être petit).

✓ Correct! ✗ Not quite. Correct answer: 이 방은 작은데 깨끗해요.
작다 est un adjectif avec une consonne finale (batchim), donc on ajoute 은데.

frontend.learn_grammar.from_rule: Planter le décor : Le contexte de fond (는데/은데)

Trouve et corrige l'erreur dans ce remerciement.

Find and fix the mistake:

도와주니까 감사합니다.

✓ Correct! ✗ Not quite. Correct answer: 도와줘서 감사합니다.
Pour les remerciements et les excuses, on utilise -아/어서, pas (으)니까.

frontend.learn_grammar.from_rule: Donner des raisons : Parce que/Puisque ((으)니까)

Quelle phrase explique correctement une raison ?

Choisis la phrase naturelle pour : "J'étais fatigué donc j'ai dormi."

✓ Correct! ✗ Not quite. Correct answer: 피곤해서 잤어요.
On ne peut pas utiliser le passé (했) avant -어서. La forme correcte est donc 피곤해서.

frontend.learn_grammar.from_rule: Connecter les Raisons : Parce que & Donc (-아/어서)

Trouve et corrige l'erreur dans cette phrase.

Find and fix the mistake:

날씨가 좋아서 산책합시다!

✓ Correct! ✗ Not quite. Correct answer: 날씨가 좋으니까 산책합시다!
On ne peut pas utiliser -아서 avec des suggestions (-합시다). Utilise -니까 à la place.

frontend.learn_grammar.from_rule: Le 'parce que' coréen : Lier les phrases avec (-아/어/여서)

Trouve l'erreur dans cet ordre.

날씨가 추워서 옷을 따뜻하게 입으세요.

✓ Correct! ✗ Not quite. Correct answer: 추워서 → 추우니까
Pour un impératif (입으세요 - portez), on ne peut pas utiliser -어서. Il faut utiliser -(으)니까.

frontend.learn_grammar.from_rule: Connecter les Raisons : Parce que & Donc (-아/어서)

Quelle phrase est grammaticalement correcte ?

Choisis la phrase cause-résultat correcte :

✓ Correct! ✗ Not quite. Correct answer: 어제 아파서 학교에 안 갔어요.
On ne peut pas utiliser de marqueur de passé (-았/었-) avant la terminaison -아서/어서.

frontend.learn_grammar.from_rule: Le 'parce que' coréen : Lier les phrases avec (-아/어/여서)

Quelle phrase pose correctement le contexte ?

Choisis la phrase la plus naturelle pour : 'Il pleut, alors prends un parapluie.'

✓ Correct! ✗ Not quite. Correct answer: 비가 오는데 우산을 가져가세요.
-는데 est parfait pour introduire une suggestion basée sur la situation actuelle ('Il pleut...').

frontend.learn_grammar.from_rule: Le Connecteur de Contexte (는데/은데)

Trouve l'erreur dans la conjugaison de l'adjectif.

날씨가 춥는데 따뜻하게 입어.

✓ Correct! ✗ Not quite. Correct answer: 날씨가 추운데 따뜻하게 입어.
'춥다' (froid) est un adjectif irrégulier en ㅂ. On remplace ㅂ par 우, puis on ajoute -ㄴ데. Ça donne '추운데'.

frontend.learn_grammar.from_rule: Le Connecteur de Contexte (는데/은데)

Complète la phrase avec la forme correcte de '가다' (aller).

백화점에 ___, 같이 갈래요?

✓ Correct! ✗ Not quite. Correct answer: 가는데
가다 est un verbe d'action, on ajoute donc toujours 는데, peu importe le batchim.

frontend.learn_grammar.from_rule: Planter le décor : Le contexte de fond (는데/은데)

Remplis le vide avec la bonne forme de '가다' (aller).

학교에 ____ 공부를 해요.

✓ Correct! ✗ Not quite. Correct answer: 가서
Pour cette action enchaînée (aller à l'école puis étudier), '가서' est le lien naturel.

frontend.learn_grammar.from_rule: Le 'parce que' coréen : Lier les phrases avec (-아/어/여서)

Score: /10

Questions fréquentes (6)

Seulement si les actions sont liées logiquement ou se passent au même endroit. Par exemple, "J'ai écrit une lettre et je l'ai envoyée" fonctionne car c'est une suite logique : «편지를 써서 보냈어요.»
C'est une contraction de '하여서'. En coréen moderne, on n'utilise presque plus '하여서' à l'oral, donc retiens juste «해서» comme la forme standard.
-어서 s'utilise pour des faits naturels ou logiques. -(으)니까 est plus subjectif ou pour donner un ordre comme : «비가 오니까 우산을 쓰세요.»
Non ! Tu ne peux pas dire 'Il fait beau, alors sortons' avec -어서. Pour les suggestions, utilise -(으)니까.
Pas forcément, c'est surtout une question de fonction. On utilise (으)니까 pour des raisons subjectives ou des ordres, comme dans «추우니까 문 닫으세요».
Oui ! Par exemple, «예쁘니까» (comme elle est jolie) ou «싸니까» (comme c'est pas cher). Ça fonctionne comme pour les verbes.
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