B1 · Intermédiaire Chapitre 6

Conditionals, Regrets, and Obligations

8 Règles totales
83 exemples
6 min

Chapter in 30 Seconds

Master the art of conditional expressions to navigate Japanese conversations with nuance, precision, and emotional depth.

  • Differentiate between four essential conditional forms for various social contexts.
  • Construct sophisticated 'the more... the more' sentences to describe proportional changes.
  • Express moral obligations and personal regrets using specialized verb conjugations.
Unlock the power of if, should, and regret.

Ce que tu vas apprendre

Ready to unlock the secret to truly natural Japanese? This B1 chapter is your next big leap! You're moving beyond basic sentences and into the exciting world of expressing nuanced conditions, offering insightful advice, and even sharing your deepest regrets. We'll dive deep into the four essential 'if' forms: ~tara for personal actions and sequential events, ~ba for logical conditions and general advice, ~to for automatic, undeniable outcomes, and ~nara to respond contextually to what someone else has said. Understanding when to use each isn't just about grammar; it's about conveying your precise meaning and sounding genuinely Japanese. Imagine confidently giving sophisticated advice to a friend, or explaining complex cause-and-effect relationships without missing a beat. But we're not stopping there! You'll also learn how to build 'the more... the more' sentences with ~ba~hodo, allowing you to show how things intensify together – like

the more you practice, the better you get.
Then, we'll tackle serious expressions of duty and strong logical necessity using ~beki da – perfect for discussing moral obligations or giving firm recommendations. Finally, get ready to express those
I wish I had...
moments with ~ba yokatta, adding a layer of personal reflection and regret to your conversations. By the end of this chapter, you won't just know 'if' statements; you'll wield them with confidence, connecting ideas smoothly, expressing nuanced feelings, and engaging in more mature, natural Japanese conversations. Let's make your Japanese truly expressive!

Learning Objectives

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

  1. 1
    By the end you will be able to: Use the correct 'if' form to respond appropriately to diverse situational cues.

Guide du chapitre

Overview

Welcome to your next big step in mastering Japanese grammar B1! This chapter is designed to elevate your communication skills, helping you move beyond basic sentences to express nuanced conditions, offer insightful advice, and even share your deepest regrets. At the B1 CEFR level, you're ready to tackle the complexities that make your Japanese sound truly natural and sophisticated.
We'll unlock the secrets of expressing 'if' statements, which are crucial for connecting ideas and forming complex thoughts.
You'll dive deep into the four essential 'if' forms: ~tara for personal actions and sequential events, ~ba for logical conditions and general advice, ~to for automatic, undeniable outcomes, and ~nara to respond contextually to what someone else has said. Understanding when to use each isn't just about memorizing rules; it's about conveying your precise meaning and sounding genuinely Japanese. Imagine confidently giving sophisticated advice to a friend, or explaining complex cause-and-effect relationships without missing a beat.
This knowledge is key to advanced Japanese conditionals.
But we're not stopping there! This chapter also introduces ~ba~hodo for
the more... the more
constructions, allowing you to show how things intensify together.
You'll also learn ~beki da, a powerful expression for duty and strong logical necessity, perfect for discussing moral obligations or giving firm recommendations. Finally, get ready to express those
I wish I had...
moments with ~ba yokatta, adding a layer of personal reflection and regret to your conversations. By the end of this B1 Japanese grammar chapter, you won't just know 'if' statements; you'll wield them with confidence, connecting ideas smoothly, expressing nuanced feelings, and engaging in more mature, natural Japanese conversations.
Let's make your Japanese truly expressive!

How This Grammar Works

This chapter introduces a rich set of Japanese grammar patterns designed to help you express intricate relationships between ideas. First, let's explore the four core 'if' forms. The ~tara conditional is used for personal actions, completed actions, and sequential events.
For example, 映画を見たら、家に帰ります (Eiga o mitara, ie ni kaerimasu. - If/When I watch the movie, I'll go home.). Next, the ~ba conditional (Japanese Ba-Form) expresses logical conditions, general truths, or advice.
For instance, 時間があれば、手伝います (Jikan ga areba, tetsudaimasu. - If I have time, I'll help.). The ~to conditional (Japanese 'To': The Inevitable If) is for automatic, inevitable outcomes, often like scientific facts or habitual actions.
For example, 春になると、暖かくなります (Haru ni naru to, atatakaku narimasu. - When spring comes, it gets warm.). Lastly, ~nara (Japanese Conditional Nara (~なら): The Contextual 'If') is used to respond to something previously mentioned, offering advice or a suggestion based on that context.
For example, 沖縄に行くなら、夏がいいですよ (Okinawa ni iku nara, natsu ga ii desu yo. - If you're going to Okinawa, summer is good.). These four forms, together known as The 4 'Ifs', are crucial for expressing varied conditions.
Beyond 'if' statements, we have ~ba~hodo (The More... The More), which shows a proportional relationship. The more you do one thing, the more another thing happens.
For example, 練習すればするほど、上手になります (Renshuu sureba suru hodo, jouzu ni narimasu. - The more you practice, the better you get.). For expressing strong obligations or what should be done, we use ~beki da (The Moral 'Should': ~Beki da (Duty & Obligation)).
This carries a sense of duty or strong recommendation. For instance, 約束は守るべきだ (Yakusoku wa mamoru beki da. - You should keep your promises.).
Finally, to express regret for past actions or inactions, we use ~ba yokatta (Expressing Regret: 'I wish I had...'). This means
I wish I had done X
or
I should have done X.
For example, もっと勉強すればよかった (Motto benkyou sureba yokatta. - I wish I had studied more.).
Mastering these structures will significantly enhance your ability to express complex thoughts and feelings in Japanese.

Common Mistakes

  1. 1Wrong: 毎日運動すると、健康になるでしょう。(Mainichi undou suru to, kenkou ni naru deshou.)
Correct: 毎日運動すれば、健康になるでしょう。(Mainichi undou sureba, kenkou ni naru deshou.)
*Explanation:* While ~to implies an automatic outcome, using it with a prediction like «でしょう» (probably) for a personal action sounds unnatural. ~ba is more appropriate for general conditions or advice that lead to a likely, but not strictly inevitable, outcome.
  1. 1Wrong: 早く寝るべきだった。(Hayaku neru beki datta.)
Correct: 早く寝ればよかった。(Hayaku nereba yokatta.)
*Explanation:* ~beki da expresses a moral obligation or strong recommendation for the present/future. When expressing regret about a past action that should have happened, ~ba yokatta is the correct form. ~beki datta would imply that it was your duty to sleep early, not necessarily a personal regret.
  1. 1Wrong: この本を読んだなら、面白いです。(Kono hon o yonda nara, omoshiroi desu.)
Correct: この本を読んだら、面白いです。(Kono hon o yondara, omoshiroi desu.)
*Explanation:* ~nara is used when you're responding to someone else's statement about a potential action (e.g., "I'm thinking of reading this book"). If you're talking about your own experience or a general condition based on completing an action, ~tara is the more natural choice.

Real Conversations

A

A

週末、何をするの? (Shuumatsu, nani o suru no?)
B

B

天気がよかったら、ハイキングに行こうと思っているよ。(Tenki ga yokattara, haikingu ni ikou to omotte iru yo.)

(A: What are you doing this weekend?

B

B

If the weather is good, I'm thinking of going hiking.)
A

A

もっと早く準備すればよかったな。(Motto hayaku junbi sureba yokatta na.)
B

B

そうだね。でも、今から頑張るべきだよ。(Sou da ne. Demo, ima kara ganbaru beki da yo.)

(A: I wish I had prepared earlier.

B

B

I know, right. But you should do your best from now on.)
A

A

日本語を上達させたいんだけど、どうすればいい? (Nihongo o joutatsuさせたいんだけど, dou sureba ii?)
B

B

毎日練習すればするほど、話せるようになるよ。(Mainichi renshuu sureba suru hodo, hanaseru you ni naru yo.)

(A: I want to improve my Japanese, what should I do?

B

B

The more you practice every day, the better you'll be able to speak.)

Quick FAQ

Q

What is the main difference between ~tara and ~ba in Japanese conditionals?

~tara often implies a completed action leading to the next event or a personal, one-time condition, while ~ba expresses a more general, logical condition or advice, often applicable to many situations.

Q

Can I use ~beki da for simple suggestions, or is it always a strong obligation?

While ~beki da always carries a strong sense of should or ought to, it can sometimes be used for recommendations, but it's much stronger than simpler forms like ~hou ga ii (it's better to). It implies a moral or logical necessity.

Q

Is ~ba yokatta only for past regrets, or can it be used for future situations?

~ba yokatta is specifically for past regrets –

I wish I had done X
or
I should have done X.
It cannot be used for future hypothetical situations.

Q

How do I choose the right 'if' form when all four seem possible?

Consider the nuance: Is it an automatic outcome (~to)? A general truth/advice (~ba)? A specific, completed action leading to something else (~tara)? Or a response to something someone just said (~nara)? Understanding these core distinctions will guide your choice.

Cultural Context

In Japanese communication, the choice of conditional can subtly influence politeness and directness. While ~beki da clearly states an obligation, it can sometimes sound a bit strong or preachy, especially if used directly to someone in a higher position. Often, indirect expressions or softer suggestions are preferred.
Regrets expressed with ~ba yokatta are common, reflecting a cultural tendency towards self-reflection and learning from past experiences. The nuanced use of the four 'if' forms also allows for very precise and context-sensitive communication, which is highly valued in Japanese society.

Exemples clés (8)

1

日本に行ったら、たくさん寿司を食べたいです。

Si je vais au Japon, je veux manger plein de sushis.

Le conditionnel 'Si/Quand' (~tara)
2

暇だったら、ネットフリックスを見ませんか?

Si t'es libre, on regarderait pas Netflix ?

Le conditionnel 'Si/Quand' (~tara)
3

Kono botan o osu to, doa ga akimasu.

Si tu appuies sur ce bouton, la porte s'ouvre.

La particule 'To' : Le 'Si' inévitable
4

Massugu iku to, eki ga miemasu.

Si tu vas tout droit, tu verras la gare.

La particule 'To' : Le 'Si' inévitable
5

Ashita haretara, pikunikku ni ikimashou.

S'il fait beau demain, allons faire un pique-nique.

Conditionnel Japonais : Les 4 'Si' (Ba, Tara, Nara, To)
6

Kono botan o osu to, otsuri ga demasu.

Si vous appuyez sur ce bouton, la monnaie sort.

Conditionnel Japonais : Les 4 'Si' (Ba, Tara, Nara, To)
7

Nihongo wa benkyou sureba benkyou suru hodo muzukashiku naru.

Plus on étudie le japonais, plus ça devient difficile.

Plus... plus... (~ば~ほど)
8

Kono anime wa mireba miru hodo hamaru yo.

Plus tu regardes cet anime, plus tu deviens accro.

Plus... plus... (~ば~ほど)

Conseils et astuces (4)

💡

Le 'Si' passe-partout

Si t'hésites entre les différents 'si' en japonais, utilise ~たら. C'est le plus naturel 90% du temps. «安かったら買います。»
frontend.learn_grammar.from_rule: Le conditionnel 'Si/Quand' (~tara)
🎯

Le regret avec 'Ba Yokatta'

Combine la forme en Ba avec 'yokatta' pour dire 'j'aurais dû'. Si tu as oublié ton parapluie : «買えばよかった。» (J'aurais dû l'acheter).
frontend.learn_grammar.from_rule: Forme Ba en japonais : Le conditionnel logique (Si/Pourvu que)
⚠️

La règle du 'Pas d'ordre'

N'utilise jamais «と» si la fin de ta phrase est un ordre ou une suggestion. Pour dire 'Si tu sors, achète du lait', on ne peut pas dire «外に出ると...», il faut utiliser «たら».
frontend.learn_grammar.from_rule: La particule 'To' : Le 'Si' inévitable
🎯

L'astuce 'Sore Nara'

Tu ne sais pas comment enchaîner ? Utilise Sore nara... (Dans ce cas...) pour donner ton opinion. Sore nara, ikou!
frontend.learn_grammar.from_rule: Le conditionnel japonais Nara (~なら) : Le 'Si' contextuel

Vocabulaire clé (5)

理由 (りゆう) reason 努力 (どりょく) effort 義務 (ぎむ) duty 後悔 (こうかい) regret 自然 (しぜん) nature/natural

Real-World Preview

briefcase

Giving Career Advice

Review Summary

  • Verb(ta) + ら
  • Verb(e) + ば
  • Dictionary form + と
  • Plain form + なら

Erreurs courantes

Nara is for context, not natural conditions like weather. Use 'ba' for logical conditions.

Wrong: 雨が降るなら、行きません。(If it rains, I won't go.)
Correct: 雨が降れば、行きません。

To is for absolute truths/natural cycles. Don't use it for personal choices.

Wrong: 春になると、花見をします。(If it becomes spring, I do hanami.)
Correct: 春になると、花見をします。(This is actually correct, but often confused with 'tara'.)

Beki da is for moral duty (present), Yokatta is for past regret.

Wrong: もっと食べるべきだった。(I should have eaten.)
Correct: もっと食べればよかった。(I wish I had eaten.)

Règles dans ce chapitre (8)

Next Steps

You've tackled some of the most nuanced grammar in Japanese! Keep practicing these forms in conversation, and your fluency will skyrocket.

Write a diary entry for one week using at least one conditional per day.

Pratique rapide (10)

Trouve l'erreur dans cette phrase.

安くないと、買いません。(Yasukunai to, kaimasen.)

✓ Correct! ✗ Not quite. Correct answer: Change 'kaimasen' (volonté) par une conséquence naturelle.
Kaimasen exprime une volonté. Avec «と», on préfère une impossibilité physique comme «買えない» (je ne peux pas acheter).

frontend.learn_grammar.from_rule: La particule 'To' : Le 'Si' inévitable

Quelle phrase utilise correctement 'と' ?

Choisis la bonne option :

✓ Correct! ✗ Not quite. Correct answer: お金があると、嬉しいです。 (Okane ga aru to, ureshii desu.)
On ne peut pas utiliser «と» avec un désir (ikitai) ou une suggestion (kaimashou). Par contre, c'est ok avec une émotion naturelle (ureshii).

frontend.learn_grammar.from_rule: La particule 'To' : Le 'Si' inévitable

Trouve et corrige l'erreur de conjugaison de l'adjectif.

Find and fix the mistake:

{寒|さむ}ければ{寒|さむ}いほど、スキーが{楽|たの}しくなる。

✓ Correct! ✗ Not quite. Correct answer: {寒|さむ}ければ{寒|さむ}いほど (Pas d'erreur)
Cette phrase est déjà parfaite. Pour les adjectifs en -i comme {寒い|さむい}, on remplace le 'i' par 'kereba'.

frontend.learn_grammar.from_rule: Plus... plus... (~ば~ほど)

Traduis cette phrase naturellement.

If you turn right, there is a bank.

✓ Correct! ✗ Not quite. Correct answer: 右に曲がると、銀行があります。 (Migi ni magaru to, ginkou ga arimasu.)
Utilise la forme dictionnaire «曲がる» + «と» pour donner un itinéraire avec un résultat inévitable.

frontend.learn_grammar.from_rule: La particule 'To' : Le 'Si' inévitable

Quelle phrase est correcte pour dire 'S'il fait chaud, allons nager' ?

Choisis la bonne phrase :

✓ Correct! ✗ Not quite. Correct answer: 暑かったら、泳ぎに行きましょう。
On utilise ~たら pour les suggestions. ~と ne peut pas être suivi d'une invitation.

frontend.learn_grammar.from_rule: Le conditionnel 'Si/Quand' (~tara)

Choisis la bonne forme en Ba pour le verbe 'boire' (nomu).

Si tu bois ce médicament, tu iras mieux.

✓ Correct! ✗ Not quite. Correct answer: {この薬を飲めば|kono kusuri o nomeba}
Pour les verbes godan finissant en 'mu', on change le 'u' en 'e' et on ajoute 'ba'. Nomu → Nomeba.

frontend.learn_grammar.from_rule: Forme Ba en japonais : Le conditionnel logique (Si/Pourvu que)

Identifie la partie qui ne sonne pas naturelle dans cette phrase.

Find and fix the mistake:

{東京に行けば、美味しいラーメンを食べましょう。|tōkyō ni ikeba, oishii rāmen o tabemashō.}

✓ Correct! ✗ Not quite. Correct answer: {東京に行けば|tōkyō ni ikeba} (Change pour 'ittara')
Tu ne peux pas faire suivre 'ba' par une suggestion (mangeons) si la condition dépend de ta propre action. Utilise 'tara' ici.

frontend.learn_grammar.from_rule: Forme Ba en japonais : Le conditionnel logique (Si/Pourvu que)

Trouve et corrige l'erreur

Find and fix the mistake:

{もっと早く来ばよかった。|もっとはやくこばよかった。}

✓ Correct! ✗ Not quite. Correct answer: {もっと早く来ればよかった。|もっとはやくくればよかった。}
La forme en 'ba' du verbe irrégulier {来る|くる} est {来れば|くれば}.

frontend.learn_grammar.from_rule: Exprimer le regret : 'J'aurais dû...' (~ばよかった)

Corrige la phrase peu naturelle

Find and fix the mistake:

{春|はる}になれば、{桜|さくら}が{咲|さ}きます。 (Conséquence naturelle)

✓ Correct! ✗ Not quite. Correct answer: {春|はる}になると、{桜|さくら}が{咲|さ}きます。
Les phénomènes naturels et les changements de saison sont mieux décrits avec {と|to}.

frontend.learn_grammar.from_rule: Conditionnel Japonais : Les 4 'Si' (Ba, Tara, Nara, To)

L'interlocuteur veut suggérer un moment.

Find and fix the mistake:

Choisis la bonne formulation pour : 'Si c'est demain, je suis libre.'

✓ Correct! ✗ Not quite. Correct answer: 明日なら、暇です。
Les noms prennent nara directement. Pas besoin de da ou ni.

frontend.learn_grammar.from_rule: Le conditionnel japonais Nara (~なら) : Le 'Si' contextuel

Score: /10

Questions fréquentes (6)

~たら est pour l'oral et le quotidien, il implique un ordre chronologique. ~ば est plus formel, écrit, et se concentre sur la condition logique pure. «飲んだら» sonne plus naturel en discutant.
Oui ! Si l'événement est certain d'arriver (comme "Quand j'aurai 20 ans"), ~たら fonctionne comme 'quand'. «20歳になったら».
'Sureba' insiste sur la condition : 'À condition que tu fasses...'. 'Shitara' est plus temporel : 'Une fois que tu auras fait...'. Utilise 'shitara' pour des plans futurs comme «仕事が終わったら、ビールを飲もう» (Une fois le boulot fini, buvons une bière).
Seulement pour des vérités générales comme «春になれば、花が咲く» (Quand le printemps arrive, les fleurs éclosent). Ne l'utilise pas pour un moment précis comme 'Quand je l'ai vu hier'.
Seulement si le résultat est inévitable. Tu ne peux pas dire
Si je vais au Japon, je visiterai Kyoto
avec «と» car c'est ton choix personnel. Utilise plutôt «たら».
Ça devient confus ! «学生と» veut dire 'avec un étudiant'. Pour dire 'si on est étudiant', il faut absolument dire «学生だと».