B2 · فوق المتوسط فصل 3

Clarifying Subjects with the Personal Infinitive

5 القواعد الإجمالية
50 أمثلة
6 دقيقة
القواعد في هذا الفصل تدريب سريع

Chapter in 30 Seconds

Master the Personal Infinitive to speak with native-level precision and clarity in Portuguese.

  • Conjugate verbs to identify exactly who is performing an action.
  • Replace complex subjunctive structures with elegant infinitive forms.
  • Apply the infinitive correctly after common prepositions and time markers.
Clarify your subjects and elevate your fluency.

ما ستتعلمه

Hey there, language explorer! Ready to unlock a new level of precision and fluency in your Portuguese? In this chapter, we're diving deep into the Personal Infinitive (Infinitivo Pessoal) – a powerful tool that will make your speech sound incredibly natural and sophisticated. It might sound complex, but by the end, you'll wonder how you ever spoke without it! What will you learn? You'll master how to specify *exactly who* is performing an action after prepositions or impersonal expressions. Think about situations where you want to say,

For *us* to understand...
or Without *you* knowing... – the Personal Infinitive provides a direct, elegant way to do this without resorting to the often-tricky subjunctive mood. You'll learn to conjugate verbs like falar (to speak) or comer (to eat) in their personal infinitive forms to perfectly match the subject. Why does it matter? This isn't just another grammar rule; it's a key to sounding genuinely native. It allows you to express nuances and avoid ambiguity, making your Portuguese flow effortlessly. Imagine discussing plans with a friend:
Before *we* go to the cinema, we should eat dinner.
Or giving advice: "It's important for *you* to know this." The Personal Infinitive brings clarity and authenticity to these everyday interactions. How do the rules connect? We'll start by understanding the basic concept and conjugation patterns. Then, we'll explore its crucial role after various prepositions and impersonal phrases, including time expressions like antes de (before) and depois de (after). You'll see how these rules build upon each other, offering a streamlined path to subject clarification while cleverly sidestepping the subjunctive. What will you be able to do? Upon completing this chapter, you'll confidently express complex ideas with greater precision and sound far more like a native speaker. You'll navigate conversations about responsibilities, timelines, and conditions with a newfound ease, ensuring your message is always crystal clear. Ready to make your Portuguese shine? 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: Conjugate and apply the personal infinitive to clarify subjects in complex sentences.

دليل الفصل

نظرة عامة

Welcome, language explorer, to a crucial step in mastering Portuguese grammar B2! This chapter introduces you to the Personal Infinitive, known in Portuguese as Infinitivo Pessoal. If you've ever found yourself struggling to precisely state *who* is doing an action in a complex sentence, especially after prepositions or impersonal phrases, this is your solution.
The Personal Infinitive is a powerful and elegant grammatical construction that will significantly elevate your fluency and clarity, making your speech sound much more natural and sophisticated.
At the B2 level, moving beyond basic sentence structures is essential for expressing nuanced ideas. The Personal Infinitive allows you to do just that by providing a direct way to clarify the subject of a verb when it's dependent on another clause. Instead of relying on potentially awkward workarounds or the often-tricky subjunctive mood, you'll learn to use this unique Portuguese feature to say things like
for *us* to go
or without *them* knowing with ease.
This isn't just about learning a new rule; it's about unlocking a key aspect of authentic Portuguese expression.
Mastering the Infinitivo Pessoal is a hallmark of advanced Portuguese grammar. It's a skill that native speakers use constantly, and integrating it into your own language will make your communication smoother, more precise, and far more understandable. By the end of this chapter, you’ll confidently apply this structure in various contexts, ensuring your message is always crystal clear and authentically Portuguese.

كيف تعمل هذه القاعدة

The Personal Infinitive (Infinitivo Pessoal) is a fascinating and uniquely Portuguese grammatical feature that allows us to specify the subject of an infinitive verb. Unlike the impersonal infinitive (e.g., falar – to speak), the Personal Infinitive changes its ending to match the person performing the action, much like a conjugated verb. This directly addresses
The Personal Infinitive: Verbs with People Attached
and
The Personal Infinitive: Verbs with Personality (Infinitivo Pessoal)
.
Let's look at the conjugation pattern for regular verbs using falar (to speak), comer (to eat), and partir (to leave):
* eu falar (for me to speak)
* tu falares (for you to speak)
* ele/ela/você falar (for him/her/you to speak)
* nós falarmos (for us to speak)
* vós falardes (for you (plural, informal) to speak)
* eles/elas/vocês falarem (for them/you (plural) to speak)
Notice how the endings change: -es, -mos, -des, -em. The first and third person singular forms are identical to the impersonal infinitive. Irregular verbs (like ser, ter, vir, pôr) will have irregular stems, but they generally follow the same personal endings.
For example, ser becomes eu ser, tu seres, nós sermos, etc.
The Personal Infinitive is most commonly used after prepositions and impersonal expressions, as highlighted in
Personal Infinitive: Conjugating Verbs After Prepositions (Infinitivo Pessoal)
. This is where it shines as a tool for Avoiding the Subjunctive when a clear subject is present.
Common triggers include:
* Prepositions: para (for/in order to), antes de (before), depois de (after), sem (without), por (by/for), ao (upon/when).
* Para eles entenderem, preciso explicar melhor. (For them to understand, I need to explain better.)
* Antes de sairmos, vamos comer. (Before we leave, let's eat.)
* Sem tu saberes, ele já fez isso. (Without you knowing, he already did that.)
* Impersonal Expressions: É importante (It's important), É preciso (It's necessary), É bom (It's good), É difícil (It's difficult).
* É importante vocês estudarem para o exame. (It's important for you (plural) to study for the exam.)
* É preciso nós falarmos sobre isso. (It's necessary for us to talk about this.)
This usage is particularly common with time expressions like antes de and depois de, as covered in "Timing & Subjects: Using Personal Infinitive (antes/depois de)". It provides a concise way to link actions to specific individuals within a temporal framework, making your B2 Portuguese sound incredibly natural and precise.

الأخطاء الشائعة

  1. 1✗ Wrong:
    É importante para nós *estudar*.
✓ Correct:
É importante para nós *estudarmos*.
*Explanation:* When an impersonal expression like é importante is followed by a preposition (para) and then a specific subject (nós), the infinitive verb must be conjugated in the personal infinitive to match that subject. Here, estudar is the impersonal infinitive, but estudarmos correctly reflects the nós subject.
  1. 1✗ Wrong:
    Antes que *nós vamos* embora, quero falar contigo.
✓ Correct:
Antes de *nós irmos* embora, quero falar contigo.
*Explanation:* While the subjunctive (que nós vamos) might seem like an option here, the Personal Infinitive is much more common and natural after prepositions like antes de when referring to a specific subject. It elegantly avoids the subjunctive mood, making the sentence smoother and more idiomatic in Portuguese grammar.
  1. 1✗ Wrong:
    Ele saiu sem *tu perceber*.
✓ Correct:
Ele saiu sem *tu perceberes*.
*Explanation:* Even with irregular verbs or when the impersonal infinitive form is the same for the first and third person singular, other persons (like tu or nós) still require their specific personal infinitive endings. Perceber is the impersonal infinitive, but perceberes correctly matches the tu subject.

محادثات حقيقية

A

A

É importante para nós chegarmos cedo amanhã. (It's important for us to arrive early tomorrow.)
B

B

Sim, para não perdermos o início da reunião. (Yes, so we don't miss the start of the meeting.)
A

A

O que podemos fazer antes de eles partirem? (What can we do before they leave?)
B

B

Podemos jantar juntos para nos despedirmos. (We can have dinner together to say goodbye.)
A

A

Sem tu saberes, eu já comprei os bilhetes. (Without you knowing, I already bought the tickets.)
B

B

Que bom! Assim não precisamos nos preocupar com isso. (That's great! That way we don't need to worry about it.)

أسئلة شائعة

Q

How does the Personal Infinitive help in B2 Portuguese fluency?

It allows you to specify the subject of an infinitive verb, especially after prepositions or impersonal expressions, making your sentences more precise and sounding much more natural, often avoiding the subjunctive.

Q

Can I always use the Personal Infinitive instead of the subjunctive after prepositions?

Not always, but very often. When the subject of the infinitive is clearly stated or implied, the Personal Infinitive is usually the preferred and most natural choice, especially after prepositions like para, antes de, depois de, sem, etc., effectively Avoiding the Subjunctive.

Q

What's the main difference between the impersonal infinitive and the Personal Infinitive in Portuguese grammar?

The impersonal infinitive (e.g., falar) refers to the action generally, without a specific subject. The Personal Infinitive (e.g., falarmos) specifies *who* is performing that action, with endings that match the subject.

السياق الثقافي

The Personal Infinitive is a cornerstone of advanced Portuguese grammar and is used extensively in both European and Brazilian Portuguese. Its frequent use is one of the key indicators of a highly proficient speaker. While it might feel a bit formal or clunky to English speakers initially, mastering it makes your Portuguese sound educated, precise, and effortlessly natural in everyday conversations, from making plans to giving advice.
It's not just a rule; it's an ingrained part of how native speakers structure their thoughts.

أمثلة رئيسية (2)

1

Temos de terminar o trabalho antes de eles chegarem.

يجب أن ننهي العمل قبل وصولهم.

التوقيت والفاعل: استخدام المصدر الشخصي (antes/depois de)
2

Depois de vós sairdes, eu vou limpar a casa.

بعد خروجكم، سأقوم بتنظيف المنزل.

التوقيت والفاعل: استخدام المصدر الشخصي (antes/depois de)

نصائح وحيل (4)

🎯

اختصار 'Ao' الذكي

تركيبة 'Ao' مع المصدر الشخصي هي طريقة احترافية جداً لقول 'لما [فلان] عمل [كذا]'. مثلاً لو عايز تحكي لصحابك:
Ao chegarmos ao cinema, o filme começou.
frontend.learn_grammar.from_rule: المصدر الشخصي: أفعال محددة الأشخاص
🎯

بديل ذكي لصيغة المنصوب

في المحادثات اليومية في البرازيل، الناس بتفضل تستخدم المصدر الشخصي بعد 'para' بدل ما تعقد الأمور بصيغة Subjunctive. جملة Para eles fazerem بتبان طبيعية أكتر بكتير من
Para que eles façam
وأنت بتطلب قهوتك!
frontend.learn_grammar.from_rule: المصدر الشخصي: أفعال ذات شخصية (Infinitivo Pessoal)
💡

ضمائر 'Eu' و 'Ele' زي النينجا

خلي بالك إن تصريف المصدر الشخصي مع 'أنا' و 'هو/هي' بيفضل زي ما هو بالظبط زي شكل الفعل في القاموس، والسياق هو اللي بيعرفنا الفاعل:
É melhor eu falar agora.
frontend.learn_grammar.from_rule: المصدر الشخصي: سر تجنب الـ Subjunctive
🎯

الاختصار إلى صيغة الشرط

إذا كنت تواجه صعوبة في جمل «que + صيغة الشرط» المعقدة، جرب استخدام «حرف جر + تصريف شخصي للفعل». غالبًا ما تكون قابلة للتبديل وأسهل في التذكر! Para eles entenderem أسهل من
Para que eles entendam
.
frontend.learn_grammar.from_rule: المصدر الشخصي: تصريف الأفعال بعد حروف الجر

المفردات الرئيسية (6)

Infinitivo Pessoal Personal Infinitive Conjugação Conjugation Antes de Before Depois de After Ambiguidade Ambiguity Sujeito Subject

Real-World Preview

calendar

Planning a Meeting

Review Summary

  • Infinitivo + Personal Ending
  • Antes/Depois de + Personal Inf.

أخطاء شائعة

You mixed up the singular pronoun with a plural verb ending. Match the ending to the subject.

Wrong: Para eu comemos.
صحيح: Para eu comer.

Without the subject pronoun, it's ambiguous who is arriving. Always include the pronoun if the subject changes or is not obvious.

Wrong: Antes de chegar, eu vi ele.
صحيح: Antes de eu chegar, eu vi ele.

You don't need 'que' with the personal infinitive. 'Que' usually triggers the subjunctive.

Wrong: É importante que nós fazermos.
صحيح: É importante nós fazermos.

القواعد في هذا الفصل (5)

1

المصدر الشخصي: أفعال محددة الأشخاص

B2
المصدر الشخصي أداة سحرية بتخليك توضح «مين» اللي عمل الفعل في جملة المصدر، خاصة مع الكلمات المفتاحية زي para و por و ao.
Obrigado por me **ajudarem** com a mudança!
10 أمثلة
2

المصدر الشخصي: أفعال ذات شخصية (Infinitivo Pessoal)

B2
استخدم المصدر الشخصي بعد حروف الجر أو التعبيرات غير الشخصية عشان تحدد بوضوح «مين» اللي بيعمل الفعل، واستخدم كلمات زي para و sem و antes de كإشارات ذكية.
Comprei os bilhetes para nós irmos ao concerto.
10 أمثلة
3

المصدر الشخصي: سر تجنب الـ Subjunctive

B2
استخدم 'المصدر الشخصي' عشان تحدد 'مين' اللي بيعمل الفعل بعد العبارات غير الشخصية، وبكده تهرب من تعقيدات الـ Subjunctive. الأدوات السحرية: sem que، infinitivo، sujeito.
É importante nós estarmos lá às 8h.
10 أمثلة
4

المصدر الشخصي: تصريف الأفعال بعد حروف الجر

B2
التصريف الشخصي للفعل يوضح الفاعل بعد حروف الجر، مما يجعل لغتك البرتغالية طبيعية وفعالة ومتطورة.
Para vocês entenderem a piada, precisam ver o víde...
10 أمثلة
5

التوقيت والفاعل: استخدام المصدر الشخصي (antes/depois de)

B2
استخدام الإنفينيتيف الشخصي بعد antes de و depois de بيخلي كلامك أدق وبيوضح الفاعل بسهولة من غير تعقيدات صيغة الاحتمال.
Temos de terminar o trabalho antes de eles chegare...
10 أمثلة

Next Steps

You have done an amazing job today! Keep practicing, and you'll be speaking Portuguese with absolute confidence in no time.

Write a diary entry using 5 sentences with the personal infinitive.

Continue to: Explaining Why: Cause and Purpose

تدريب سريع (9)

املأ الفراغ بالشكل الصحيح للفعل بين القوسين.

Comprei ingressos para nós ___ (ver) o show.

✓ Correct! ✗ Not quite. Correct answer: vermos
بما أن الفاعل هو nós، نضيف النهاية -mos إلى التصريف ver.

frontend.learn_grammar.from_rule: المصدر الشخصي: تصريف الأفعال بعد حروف الجر

أي جملة صحيحة؟

Select the correct way to say 'without them knowing':

✓ Correct! ✗ Not quite. Correct answer: Sem eles saberem.
بعد sem، إذا كان الفاعل eles، يجب أن يأخذ الفعل saber النهاية -rem.

frontend.learn_grammar.from_rule: المصدر الشخصي: تصريف الأفعال بعد حروف الجر

أي جملة هي الصحيحة؟

اختر الجملة الصحيحة لقول 'قبل أن يغادروا':

✓ Correct! ✗ Not quite. Correct answer: Antes de eles saírem
الإنفينيتيف الشخصي لضمير 'eles' بياخد النهاية '-em'.

frontend.learn_grammar.from_rule: التوقيت والفاعل: استخدام المصدر الشخصي (antes/depois de)

أوجد الخطأ وصححه

Find and fix the mistake:

Antes de tu comer, lava as mãos.

✓ Correct! ✗ Not quite. Correct answer: Antes de tu comeres, lava as mãos.
صيغة 'tu' بتتطلب إضافة '-es' لنهاية الفعل.

frontend.learn_grammar.from_rule: التوقيت والفاعل: استخدام المصدر الشخصي (antes/depois de)

لاقي الغلطة وصححها في الجملة دي.

É preciso nós trabalhar mais.

✓ Correct! ✗ Not quite. Correct answer: É preciso nós trabalharmos mais.
لما يكون الفاعل 'nós'، لازم نستخدم نهاية '-mos': 'trabalharmos'.

frontend.learn_grammar.from_rule: المصدر الشخصي: أفعال ذات شخصية (Infinitivo Pessoal)

املاً الفراغ بالشكل الصحيح لفعل 'beber'

Vamos sair depois de nós ___ o café.

✓ Correct! ✗ Not quite. Correct answer: bebermos
مع الضمير 'nós'، بنضيف النهاية '-mos' للفعل الأصلي 'beber'.

frontend.learn_grammar.from_rule: التوقيت والفاعل: استخدام المصدر الشخصي (antes/depois de)

أي جملة هي الصحيحة؟

اختر الجملة الصحيحة لغوياً:

✓ Correct! ✗ Not quite. Correct answer: Saímos sem eles nos verem.
بعد 'sem'، لو الفاعل جمع ('eles')، لازم نصرف المصدر لـ 'verem'. ملحوظة: 'virem' هي تصريف مستقبل لـ 'ver'، مش مصدر شخصي.

frontend.learn_grammar.from_rule: المصدر الشخصي: أفعال ذات شخصية (Infinitivo Pessoal)

املاً الفراغ بالشكل الصحيح لفعل 'fazer'.

Comprei os ingredientes para vocês ____ o jantar.

✓ Correct! ✗ Not quite. Correct answer: fazerem
الفاعل هو 'vocês' (جمع)، عشان كده بنضيف نهاية '-em' للمصدر.

frontend.learn_grammar.from_rule: المصدر الشخصي: أفعال ذات شخصية (Infinitivo Pessoal)

ابحث عن الخطأ في الجملة وقم بتصحيحه.

É importante vocês estudarem para passares no exame.

✓ Correct! ✗ Not quite. Correct answer: É importante vocês estudarem para passarem no exame.
يجب أن يتوافق كلا الفعلين مع vocês. Passares مخصص لـ tu، لذا يجب أن يكون passarem.

frontend.learn_grammar.from_rule: المصدر الشخصي: تصريف الأفعال بعد حروف الجر

Score: /9

أسئلة شائعة (6)

لأ طبعاً، كل واحد ليه 'مفتاح' بيشغله! ما ينفعش تقول *para fores*. لازم تقول para seres لأن حروف الجر بتطلب مصدر مش شك.
هما بيستخدموا أصل الفعل زي ما هو. وعشان توضح مين اللي بيتكلم، بنحط الضمير قبل الفعل ببساطة: para eu fazer مقابل para ele fazer.
هو شكل من أشكال الفعل المصدر بتتغير نهايته عشان تبين مين اللي بيعمل الفعل. دي حاجة فريدة في البرتغالية، وبنستخدمها لما نحب نحدد الفاعل بوضوح، زي:
Para eles saberem a verdade
.
لأ طبعًا. لو الفاعل 'eu' أو 'ele/ela/você'، بيفضل زي المصدر العادي. بنضيف نهايات بس مع 'tu' (-es)، و 'nós' (-mos)، و 'eles/vocês' (-em). مثلاً:
Para nós fazermos o bolo
.
هي الجملة اللي بتبدأ بـ 'إنه...' (É...) وما بتعودش على شيء محدد، زي: É bom (من الجيد) أو É fácil (من السهل).
عشان البساطة! مش محتاج تحفظ تصريفات الـ Subjunctive المعقدة، بس خد المصدر وضيف نهايات بسيطة، وكمان بتخلي كلامك راقي:
É fácil tu fazeres.
الفصل السابق
The Versatile Past Participle
الفصل التالي
Explaining Why: Cause and Purpose
العودة إلى خارطة الطريق