B2 · Intermediário superior Capítulo 3

Advice, Obligations, and Inevitability

4 Regras totais
40 exemplos
5 min
Regras neste capítulo Prática rápida

Chapter in 30 Seconds

Master the art of giving advice and expressing personal necessity with precision and native nuance.

  • Learn to provide firm guidance using ~koto da.
  • Identify when to remove unnecessary tasks with ~koto wa nai.
  • Convey reluctant obligations through causative-passive and ~zaru o enai structures.
Command your life with nuance and authority.

O que você vai aprender

Ready to truly master expressing subtle shades of advice, obligation, and necessity in Japanese? This B2 chapter is your gateway to sounding more precise and native. You'll dive into four powerful structures that let you communicate exactly what you mean, making your Japanese feel much more natural and sophisticated. First, you'll learn how to give firm, almost expert-like advice using ~koto da (～ことだ). Imagine guiding a friend on a crucial decision or sharing a universal truth – this is your tool. Then, we flip the coin with {koto wa nai} (ことはない), mastering how to tell someone an action is unnecessary, or that they're overthinking things. Perfect for reassuring a worried colleague or simplifying a task. Next, you'll tackle the impactful causative-passive ~saserareru (～させられる), allowing you to express being compelled or forced to do something against your will. This is key for sharing frustrations or detailing unavoidable circumstances. Finally, you'll grasp ~zaru o enai (～ざるを得ない), the ultimate expression for when you truly have

no choice but to
act due to an inescapable situation. Think about those moments when you reluctantly accept a task or acknowledge an unavoidable outcome. By the end of this chapter, you won't just understand these rules; you'll wield them with confidence. You'll be able to offer nuanced advice, express relief or mild annoyance about unnecessary actions, powerfully describe situations where you were made to do something, and articulate inescapable necessities, all while sounding authentically Japanese. Get ready to elevate your conversational game!

Learning Objectives

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

  1. 1
    By the end you will be able to: Provide professional advice using the ~koto da structure.
  2. 2
    By the end you will be able to: Express that a task is unnecessary using ~koto wa nai.
  3. 3
    By the end you will be able to: Describe being forced into actions using the causative-passive voice.
  4. 4
    By the end you will be able to: Articulate inescapable life choices using ~zaru o enai.

Guia do capítulo

Overview

Welcome to a pivotal chapter in your journey to mastering Japanese grammar B2! This guide is designed to elevate your ability to express nuanced advice, obligations, and inevitability, moving you closer to sounding like a native speaker. At this intermediate-advanced stage, simply knowing the basic grammar isn't enough; you need to understand the subtle shades of meaning that truly make your Japanese precise and natural.
This chapter is your key to unlocking those sophisticated expressions.
By delving into four powerful grammatical structures – ~koto da (～ことだ), {koto wa nai} (ことはない), ~saserareru (～させられる), and ~zaru o enai (～ざるを得ない) – you'll gain the tools to communicate with greater depth and confidence. Whether you're guiding a friend, reassuring a colleague, or describing an unavoidable situation, these patterns are essential for any serious learner aiming for fluency. Get ready to refine your understanding of Japanese advice and obligation, and transform your conversational skills.

How This Grammar Works

This chapter introduces you to four distinct yet interconnected Japanese grammar patterns that enable you to express advice, lack of necessity, forced actions, and unavoidable obligations with precision. First, ~koto da (～ことだ) is used to give strong, often authoritative advice or to state a general truth. It conveys a sense of
it is advisable to,
one should, or
the best thing to do is.
It’s direct and often used when you want to make a clear recommendation.
For example: 「健康のためには、毎日運動することだ。」(For your health, you should exercise every day.)
Next, we have {koto wa nai} (ことはない), which expresses that there is no need to or no reason to perform an action. It's perfect for reassuring someone or indicating that something is unnecessary. The verb before koto wa nai is in its plain form.
For instance: 「そんなに心配することはないよ。」(There's no need to worry that much.) This contrasts with simply saying you *don't* do something, by specifically stating the action is *unnecessary*.
Then, the impactful causative-passive form, ~saserareru (～させられる), allows you to express being compelled or forced to do something against your will. This structure combines the causative (making someone do something) with the passive (being acted upon), resulting in
I was made to do it
or
I was forced to do it.
It's crucial for describing situations where you felt a lack of control. For example: 「上司に残業させられた。」(My boss made me work overtime.)
Finally, ~zaru o enai (～ざるを得ない) is the ultimate expression of inevitability, meaning
to have no choice but to
or
to be compelled to.
It conveys a strong sense of resignation or reluctant necessity when faced with an inescapable situation. The verb before zaru o enai is in its negative plain form, but with 「ない」 replaced by 「ざる」. For example: 「締切が近いので、徹夜せざるを得ない。」(Since the deadline is near, I have no choice but to pull an all-nighter.) Mastering these structures will significantly enhance your B2 Japanese communication.

Common Mistakes

  1. 1✗ Wrong: 「もっと勉強したほうがいいことだ。」 (It is advisable that you should study more.)
✓ Correct: 「もっと勉強することだ。」 (You should study more.)
*Explanation:* ~koto da already implies strong advice. Adding 「ほうがいい」 (better to) creates redundancy and sounds unnatural. Use ~koto da for direct, firm advice without softer modifiers.
  1. 1✗ Wrong: 「彼に手伝わせられた。」 (He was made to help.)
✓ Correct: 「彼に手伝わされた。」 (He was made to help.)
*Explanation:* The causative-passive ~saserareru is formed by attaching 「させられる」 to Group 1 verbs' 'a' stem, and 「させられる」 to Group 2/Irregular verbs' stem. For Group 1 verbs ending in 「う」 like 「手伝う」, the 'a' stem is 「手伝わ」, so it becomes 「手伝わされる」. The incorrect example uses 「させられる」 directly without the correct conjugation for Group 1 verbs.
  1. 1✗ Wrong: 「行かないと、困ることはない。」 (If I don't go, there's no problem.)
✓ Correct: 「行かなくても、困ることはない。」 (Even if I don't go, there's no need to worry.)
*Explanation:* {koto wa nai} means
there is no need/reason to.
The phrasing 「行かないと」 means "if I don't go," which implies a conditional consequence. The correct usage should express that the action itself (going) is unnecessary, often with 「なくても」 (even if not).

Real Conversations

A

A

日本語がなかなか上達しなくて悩んでいます。どうしたらいいですか？ (I'm struggling because my Japanese isn't improving. What should I do?)
B

B

毎日、少しでも日本語で話すことだよ。それが一番の上達法だ。 (You should speak Japanese a little bit every day. That's the best way to improve.)
A

A

明日の会議、資料の準備はもう終わりましたか？ (Have you finished preparing the materials for tomorrow's meeting yet?)
B

B

あ、もう終わりましたよ。そんなに急ぐことはなかったんですが、念のため早めにやりました。 (Oh, I've already finished. There was no need to rush that much, but I did it early just in case.)
A

A

昨日の飲み会、行きたくなかったのに、結局参加させられちゃったよ。 (I didn't want to go to the drinking party yesterday, but I ended up being made to attend.)
B

B

そうなんだ。でも、部長に誘われたら断るわけにはいかないから、行かざるを得ないよね。 (Is that right? But if the department manager invites you, you can't refuse, so you have no choice but to go, right?)

Quick FAQ

Q

How does ~koto da differ from ~hou ga ii when giving advice in Japanese?

~koto da conveys firmer, more direct advice or a strong recommendation, often implying a general rule or principle. ~hou ga ii (～ほうがいい) is softer, suggesting

it would be better to
and offers a recommendation rather than a firm directive.

Q

Can I use {koto wa nai} in polite speech?

Yes, you can use {koto wa nai} in polite speech by adding 「です」 or 「でしょう」 at the end, as in 「〜ことはないです」 or 「〜ことはないでしょう」.

Q

Is ~zaru o enai commonly used in everyday Japanese conversation?

While ~zaru o enai is a powerful expression for

no choice but to,
it's quite formal. In casual conversation, people might use 「〜しかない」 (there is only ~ to do) or 「〜なければならない」 (must do) more frequently, though ~zaru o enai certainly appears in more serious or formal contexts.

Cultural Context

In Japanese culture, direct advice can sometimes be softened to maintain harmony, but ~koto da provides a clear, often expert-like recommendation, frequently used in educational or professional settings. The concept of ~saserareru (being forced) and ~zaru o enai (no choice but to) often resonates deeply, reflecting a society where group obligations and hierarchy can heavily influence individual actions. Understanding these structures allows you to articulate personal feelings about external pressures, a common theme in Japanese communication.

Exemplos-chave (8)

1

{合格|ごうかく}したいなら、{毎日|まいにち}{復習|ふくしゅう}することだ。

Se você quer passar, o que deve fazer é revisar todos os dias.

Dando conselhos diretos (~koto da)
2

{健康|けんこう}のためには、あまりお{酒|さけ}を{飲|の}まないことだ。

Para a sua saúde, o ideal é não beber muito álcool.

Dando conselhos diretos (~koto da)
3

Jibun o semeru koto wa nai yo.

Não há necessidade de se culpar.

Gramática Japonesa: "Não há necessidade de..." (Koto wa nai)
4

Sonna ni isogu koto wa nai.

Não há necessidade de se apressar tanto.

Gramática Japonesa: "Não há necessidade de..." (Koto wa nai)
5

I was made to eat vegetables by my parents.

Fui obrigado pelos meus pais a comer vegetais.

Causativo-Passivo Japonês: 'Fui obrigado a fazer' (~させられる)
6

I was made to wait for 3 hours by the manager.

O chefe me fez esperar por 3 horas.

Causativo-Passivo Japonês: 'Fui obrigado a fazer' (~させられる)
7

終電がなくなったので、タクシーで帰らざるを得なかった。

O último trem já tinha ido, então não tive escolha a não ser voltar de táxi.

Não ter outra escolha senão... (~zaru o enai)
8

パスワードを忘れてしまったので、初期化せざるを得ない。

Esqueci minha senha, então não tenho escolha a não ser resetar o sistema.

Não ter outra escolha senão... (~zaru o enai)

Dicas e truques (4)

⚠️

Nada de sermão no chefe

Nunca use ~ことだ com superiores ou professores. Soa como se você estivesse 'olhando de cima' e dando uma lição de moral: «先生、もっと休むことですよ。»
frontend.learn_grammar.from_rule: Dando conselhos diretos (~koto da)
💬

Suavizando o tom

Adicionar o yo (よ) no final, como em «ことはないよ», deixa a frase com um ar muito mais amigável, como um conselho de um amigo próximo. «心配することはないよ。»
frontend.learn_grammar.from_rule: Gramática Japonesa: "Não há necessidade de..." (Koto wa nai)
⚠️

A Armadilha dos Verbos em '~su'

Nunca encurte verbos que terminam em 'su' para 'asareta'. Dizer 'Hanasasareta' soa muito estranho. O correto é sempre «話させられた。»
frontend.learn_grammar.from_rule: Causativo-Passivo Japonês: 'Fui obrigado a fazer' (~させられる)
⚠️

A Regra do 'Sezaru'

Nunca use 'shizaru'. Esse é o erro clássico! Para verbos que terminam em 'suru', a forma correta é sempre «せざるを得ない».
frontend.learn_grammar.from_rule: Não ter outra escolha senão... (~zaru o enai)

Vocabulário-chave (5)

助言(じょげん) advice 不要(ふよう) unnecessary 強制(きょうせい) compulsion 回避(かいひ) avoidance 納得(なっとく) acceptance

Real-World Preview

briefcase

Office Tensions

Review Summary

  • Dictionary form + koto da
  • Dictionary form + koto wa nai
  • Verb stem + saserareru
  • Negative stem + zaru o enai

Erros comuns

Students often use causative-passive for voluntary actions. Remember it implies you were forced against your will.

Wrong: 私は彼に食べさせられた。
Correto: 私は彼に食べさせられた。(Correct, but implies forced feeding; check context!)

Remember to use the negative stem (行か) before 'zaru'.

Wrong: 行くざるを得ない。
Correto: 行かざるを得ない。

Do not add particles like 'wa' or 'ga' before 'koto da'.

Wrong: 勉強することはだ。
Correto: 勉強することだ。

Next Steps

You are making incredible progress! Keep practicing these structures in your daily life.

Write a diary entry using all four patterns.

Continue to: Timing, Sequence, and Final Results

Prática rápida (10)

Qual frase expressa corretamente 'Fui obrigado a falar'?

Escolha a forma correta para {話|はな}す:

✓ Correct! ✗ Not quite. Correct answer: {話|はな}させられた
Verbos terminados em 'su' não podem ser encurtados para 'asareta'. Eles devem usar 'saserareta'.

frontend.learn_grammar.from_rule: Causativo-Passivo Japonês: 'Fui obrigado a fazer' (~させられる)

Preencha a lacuna com a forma correta de する.

パソコンが壊れたので、修理___を得ない。

✓ Correct! ✗ Not quite. Correct answer: せざる
O verbo irregular 'suru' sempre se conjuga como 'sezaru' neste padrão.

frontend.learn_grammar.from_rule: Não ter outra escolha senão... (~zaru o enai)

Qual frase está correta?

Escolha a frase gramaticalmente correta:

✓ Correct! ✗ Not quite. Correct answer: お金がないので、働かざるを得ない。
Verbos do Grupo 1 como 'hataraku' usam o radical 'a': 'hataraka' + 'zaru o enai'.

frontend.learn_grammar.from_rule: Não ter outra escolha senão... (~zaru o enai)

Encontre e corrija o erro na forma verbal.

明日テストがあるから、勉強しざるを得ない。

✓ Correct! ✗ Not quite. Correct answer: 勉強せざるを得ない
'Estudar' (benkyou suru) é um verbo suru, então deve ser 'benkyou sezaru o enai'.

frontend.learn_grammar.from_rule: Não ter outra escolha senão... (~zaru o enai)

Preencha a lacuna com a forma correta para dar um conselho.

JLPTに合格したいなら、単語をたくさん（　　）ことだ。

✓ Correct! ✗ Not quite. Correct answer: 覚える
Para dar conselhos usando ~ことだ, usamos a forma de dicionário do verbo.

frontend.learn_grammar.from_rule: Dando conselhos diretos (~koto da)

Qual frase usa a gramática corretamente para tranquilizar alguém?

Seu amigo está nervoso com uma prova.

✓ Correct! ✗ Not quite. Correct answer: 緊張することはないよ。 (Kinchou suru koto wa nai yo)
'Kinchou suru' (forma de dicionário) + 'koto wa nai' significa 'Não há necessidade de ficar nervoso'. A segunda opção significa 'Eu nunca fiquei nervoso' (experiência).

frontend.learn_grammar.from_rule: Gramática Japonesa: "Não há necessidade de..." (Koto wa nai)

Encontre o erro e corrija-o.

お金を貯めたいなら、無駄遣いするのことだ。

✓ Correct! ✗ Not quite. Correct answer: 無駄遣いしないことだ。
Se você quer economizar dinheiro, você NÃO deve gastar à toa, então use a forma negativa しないことだ.

frontend.learn_grammar.from_rule: Dando conselhos diretos (~koto da)

Complete a frase para que signifique 'Não há necessidade de correr'.

まだ時間があるから、___ ことはないよ。

✓ Correct! ✗ Not quite. Correct answer: 走る
Usamos a forma de dicionário do verbo antes de 'koto wa nai'. 'Hashiru' é a forma de dicionário de correr.

frontend.learn_grammar.from_rule: Gramática Japonesa: "Não há necessidade de..." (Koto wa nai)

Preencha a lacuna com a forma causativa-passiva correta de {行|い}く.

{部長|ぶちょう}に{出張|しゅっちょう}に ___。

✓ Correct! ✗ Not quite. Correct answer: {行|い}かされた
{行|い}かされた é a causativa-passiva (fui obrigado a ir). {行|い}かせた é apenas causativa (fiz alguém ir).

frontend.learn_grammar.from_rule: Causativo-Passivo Japonês: 'Fui obrigado a fazer' (~させられる)

Encontre o erro nesta frase sobre ser obrigado a comer.

Find and fix the mistake:

{母|はは}にケーキを{食|た}べされた。

✓ Correct! ✗ Not quite. Correct answer: {食|た}べさせられた
Verbos Ichidan como {食|た}べる devem usar a terminação completa 'saserareta'.

frontend.learn_grammar.from_rule: Causativo-Passivo Japonês: 'Fui obrigado a fazer' (~させられる)

Score: /10

Perguntas comuns (6)

Não, ele é estritamente para conselhos voltados ao futuro. Para dizer 'deveria ter feito', use ~べきだった ou ~すればよかった.
Sim! A forma de dicionário é para conselhos positivos (faça isso), como em «勉強することだ», e a forma Nai é para conselhos negativos (não faça isso), como em «諦めないことだ».
Pode ser os dois! «〜ことはない» é neutro/casual. Para ser polido, basta mudar o final para «〜ことはありません».
Sim! Você pode usar para se acalmar. Exemplo:
Por que estou em pânico? {慌てることはない}
(Não preciso me desesperar).
O passivo significa que algo foi feito COM você. O causativo-passivo significa que você foi forçado a FAZER uma ação. Por exemplo: «食べられた» (Fui comido) vs «食べさせられた» (Fui obrigado a comer).
A forma em si é neutra. Para torná-la polida, basta mudar o final para saseraremashita ou saseraremasu.
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