B2 · 中上級 チャプター 12

The Basics of the Subjunctive Mood

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11 例文
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Chapter in 30 Seconds

Unlock the power of the subjunctive mood to express your deepest emotions, hopes, and doubts in Portuguese.

  • Master the vowel swap mechanism for regular verb conjugations.
  • Identify the triggers that demand the use of the subjunctive mood.
  • Apply the subjunctive to express desires, uncertainty, and emotional reactions.
Swap the vowels, unlock the emotion.

学べること

Ready to take your Portuguese to the next level and truly sound like a native speaker? This chapter is your gateway into the exciting world of the 'Subjunctive Mood,' a verbal state that lets you move beyond cold, hard facts. You'll master the 'present subjunctive,' learning how to effortlessly express your feelings, hopes, desires, and even doubts. Forget bland statements; with a simple 'vowel swap' in verb endings, you'll transition from the realm of objective reality to the nuanced world of subjectivity. Instead of just stating ele vem (he comes) as a fact, you'll be able to say

espero que ele venha
(I hope he comes), perfectly conveying your feeling of hope. Where will this skill truly shine? Imagine ordering at a restaurant and politely saying, 'Eu quero que tragam a comida para mim' (I want them to bring the food for me), or discussing future plans with a Portuguese friend and expressing, 'Eu duvido que ele consiga fazer isso' (I doubt he can do that). The subjunctive is your secret weapon! This chapter has just five clear rules that will guide you in making these subtle yet powerful linguistic shifts. By the end, you'll confidently articulate your deepest emotions and uncertainties in Portuguese, enjoying how much more fluid and precise your communication becomes. Ready to dive into the heart of Portuguese expression? Let's go!

Learning Objectives

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

  1. 1
    By the end you will be able to: correctly conjugate regular verbs in the present subjunctive and use them after common triggers like 'espero que' or 'duvido que'.

チャプターガイド

Overview

Welcome, dedicated B2 Portuguese learners! You're about to unlock one of the most powerful and expressive tools in the language: the Subjunctive Mood. This isn't just another verb tense; it's a fundamental shift in how you perceive and convey reality in Portuguese.
Moving beyond simple factual statements, the subjunctive allows you to articulate a rich tapestry of hopes, doubts, desires, feelings, and uncertainties, truly elevating your communication to a native-like level. Mastering the present subjunctive is a key milestone in your Portuguese grammar B2 journey, enabling you to participate in more complex and nuanced conversations.
This chapter will demystify the Subjunctive (Subjuntivo), particularly focusing on the Presente do Subjuntivo. You'll discover how a simple yet elegant Portuguese vowel swap in verb endings can transform your sentences from objective declarations to expressions laden with emotion and possibility. Imagine confidently saying
I hope he comes
(Eu espero que ele venha) instead of just he comes (ele vem).
This guide will provide you with clear rules and practical examples, making the transition to subjective expression smooth and intuitive. Get ready to express your deepest thoughts and feelings with precision and flair!

How This Grammar Works

At its heart, the Portuguese Present Subjunctive is about stepping away from factual statements and entering the realm of possibility, emotion, and desire. It’s primarily used in dependent clauses, often introduced by que (that), after specific trigger verbs or expressions. This chapter focuses on Portuguese Subjunctive: Expressing Wishes & Doubts and Hopes, Doubts & Desires (Present Subjunctive), which are central to its usage.
The magic behind forming the Present Subjunctive lies in a consistent Portuguese Vowel Swap. For regular verbs, the endings literally swap vowels from their indicative counterparts:
* -AR verbs (like falar – to speak) take the characteristic -e endings: que eu fale (that I speak), que você fale (that you speak), que nós falemos (that we speak), que eles falem (that they speak).
* -ER verbs (like comer – to eat) take the characteristic -a endings: que eu coma (that I eat), que você coma (that you eat), que nós comamos (that we eat), que eles comam (that they eat).
* -IR verbs (like partir – to leave) also take the characteristic -a endings: que eu parta (that I leave), que você parta (that you leave), que nós partamos (that we leave), que eles partam (that they leave).
This vowel swap rule is your secret weapon for quickly conjugating most regular verbs. However, be aware of common irregular verbs like ser (to be) which becomes seja (that I/he/she/it be), estar (to be) which becomes esteja, and ir (to go) which becomes vá. These forms are crucial for Expressing Feelings & Doubts: The Subjunctive (Subjuntivo) and for discussing The Portuguese Subjunctive: Expressing Doubt, Emotion, and the Future.
You'll typically encounter the subjunctive after expressions like Eu quero que... (I want that...), É importante que... (It's important that...), Eu duvido que... (I doubt that...), or Espero que... (I hope that...). For example,
Eu quero que você venha à festa
 (I want you to come to the party) uses venha (from vir, to come) in the subjunctive because querer que expresses a desire.

Common Mistakes

  1. 1✗ Wrong:
    Eu espero que ele *chega* a tempo.
    (I hope he arrives on time.)
✓ Correct:
Eu espero que ele *chegue* a tempo.
(I hope he arrives on time.)
*Explanation:* The verb esperar que (to hope that) expresses a desire or hope, not a certainty, therefore it requires the present subjunctive form of chegar (chegue), not the indicative (chega).
  1. 1✗ Wrong:
    É importante que você *faz* isso.
    (It's important that you do this.)
✓ Correct:
É importante que você *faça* isso.
(It's important that you do this.)
*Explanation:* The expression É importante que... (It's important that...) conveys an opinion or necessity, triggering the present subjunctive. The verb fazer (to do/make) is irregular in the subjunctive, becoming faça.
  1. 1✗ Wrong:
    Eu duvido que eles *são* felizes.
    (I doubt that they are happy.)
✓ Correct:
Eu duvido que eles *sejam* felizes.
(I doubt that they are happy.)
*Explanation:* Duvidar que (to doubt that) expresses uncertainty, necessitating the present subjunctive. The verb ser (to be) is highly irregular in the subjunctive, taking the form sejam for they.

Real Conversations

A

A

Eu espero que você consiga terminar o relatório hoje.
 (I hope you manage to finish the report today.)
B

B

Eu também espero que eu consiga! É importante que ele esteja pronto para amanhã.
 (I hope I manage too! It's important that it be ready for tomorrow.)
A

A

Você acha que eles venham à nossa festa?
 (Do you think they'll come to our party?)
B

B

Eu duvido que eles venham, mas quero que eles se divirtam de qualquer forma!
 (I doubt they'll come, but I want them to have fun anyway!)
A

A

É essencial que todos colaborem para o sucesso do projeto.
 (It's essential that everyone collaborates for the project's success.)
B

B

Concordo! Que todos façam a sua parte.
 (I agree! May everyone do their part.)

Quick FAQ

Q

What are the main uses of the Portuguese Present Subjunctive?

The Portuguese Present Subjunctive is primarily used to express desires, emotions, doubts, opinions, recommendations, and generally any situation that is not presented as a certainty or fact. It's key for Expressing Feelings & Doubts: The Subjunctive.

Q

Is the vowel swap rule always true for regular verbs in the Present Subjunctive?

Yes, for regular verbs, the vowel swap is a consistent pattern: -AR verbs take -e endings, and -ER/-IR verbs take -a endings. This is the core of the Portuguese Vowel Swap: The Present Subjunctive.

Q

How can I identify when to use the subjunctive in a sentence?

Look for trigger expressions like verbs of desire (querer que, desejar que), emotion (ficar feliz que, lamentar que), doubt (duvidar que), opinion/necessity (é importante que, é bom que), and sometimes future implications (quando eu for, assim que ele chegar). These often signal the need for The Portuguese Subjunctive: Expressing Doubt, Emotion, and the Future.

Cultural Context

In Portuguese-speaking cultures, using the subjunctive mood is not just grammatically correct; it's a fundamental part of polite, nuanced, and empathetic communication. Native speakers seamlessly weave the subjunctive into everyday conversations to soften requests, express genuine concern, or convey uncertainty without sounding abrupt. It's less about strict rules and more about the *feeling* a sentence imparts.
For instance, saying
Espero que você esteja bem
 (I hope you are well) is much more common and natural than an indicative equivalent, showing care and consideration. Mastering this aspect of Portuguese grammar B2 will make your interactions feel significantly more authentic and respectful, regardless of regional differences, as the subjunctive's core function remains consistent across Portuguese-speaking countries.

ヒントとコツ (1)

💡

魔法の言葉 'que' を探そう

接続法の約90%は 'que'（〜ということ）という言葉の後に現れます。これを見つけたら母音を入れ替える準備をしましょう！
Quero que você venha.
frontend.learn_grammar.from_rule: ポルトガル語の母音入れ替え：接続法現在（Presente do Conjuntivo）

重要な語彙 (6)

esperar to hope/wait duvidar to doubt querer to want traga bring (subjunctive) consiga manage/can (subjunctive) talvez maybe/perhaps

Real-World Preview

coffee

Ordering at a Restaurant

Review Summary

  • Eu [indicative] -> remove 'o' -> add [opposite vowel]

よくある間違い

You used the indicative instead of the subjunctive. Remember to swap the 'a' for an 'e'.

Wrong: Espero que ele fala.
正解: Espero que ele fale.

For -ER verbs, the vowel must flip to 'a'.

Wrong: Duvido que ele come.
正解: Duvido que ele coma.

The 'eu' form of 'vir' is 'venho', so the subjunctive is 'venha'.

Wrong: Eu quero que eu venho.
正解: Eu quero que eu venha.

Next Steps

Fantastic work! You have officially conquered the most intimidating part of Portuguese grammar. Keep this momentum going!

Write 5 sentences about your future goals using 'espero que'.

Continue to: Mastering Irregular Verbs in the Present

クイック練習 (4)

疑いを正しく表現している文はどれですか？

文法的に正しい文を選んでください：

✓ Correct! ✗ Not quite. Correct answer: Duvido que ele venha hoje.
'Duvido que' は接続法をトリガーします。 'vir' の接続法は 'venha' です。

frontend.learn_grammar.from_rule: ポルトガル語の母音入れ替え：接続法現在（Presente do Conjuntivo）

不規則動詞の活用を完成させてください。

Talvez ela ___ (ser) a melhor candidata para a vaga.

✓ Correct! ✗ Not quite. Correct answer: seja
'Talvez' は接続法を必要とします。 'ser' は不規則で、 'ela' の形は 'seja' です。

frontend.learn_grammar.from_rule: ポルトガル語の母音入れ替え：接続法現在（Presente do Conjuntivo）

このWhatsAppメッセージの間違いを直してください。

Tomara que a encomenda chega amanhã.

✓ Correct! ✗ Not quite. Correct answer: Tomara que a encomenda chegue amanhã.
'Tomara que' は接続法を必要とします。 -gar で終わる動詞は、音を守るために 'g' を 'gu' に変えます。

frontend.learn_grammar.from_rule: ポルトガル語の母音入れ替え：接続法現在（Presente do Conjuntivo）

正しい接続法の形を空欄に入れてください。

O professor quer que nós ___ (estudar) mais.

✓ Correct! ✗ Not quite. Correct answer: estudemos
'quer que' は願望なので接続法を使います。 'estudo' の 'o' を取って、反対の語尾 '-emos' を付けます。

frontend.learn_grammar.from_rule: ポルトガル語の母音入れ替え：接続法現在（Presente do Conjuntivo）

Score: /4

よくある質問 (2)

これは文法の「法（ムード）」の一つです。客観的な事実ではなく、感情、願望、疑いなどの「主観的な世界」を表します。
Espero que você seja feliz.
はい、必須です！使わないと非常に不自然でロボットのように聞こえてしまいます。日常会話には欠かせません。
Talvez ele venha amanhã.
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Shifting Focus: The Passive Voice
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Mastering Irregular Verbs in the Present
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