Introduction
Learning how Brazilians express similarity, manner, and hypothetical comparison is essential for sounding natural. This article explains the difference between Como se and Que nem, two common ways to say as if and like in Brazilian Portuguese. You will learn grammar rules, sentence patterns, examples, and usage notes to help you understand and use these expressions with confidence.
- Overview: what each expression means
- Grammar: Como se
- Grammar: Que nem
- Direct comparisons: when both can appear
- Subjunctive mood: quick review
- When to avoid each expression
- Common combinations and colloquial expressions
- Pronunciation and rhythm tips
- Cultural and usage notes
- Common mistakes and how to fix them
- Short comparison summary
- Conclusion
Overview: what each expression means
Como se is used to introduce comparisons that are hypothetical or contrary to reality. It often translates as as if or as though in English, and it typically triggers the subjunctive mood in Portuguese when the action is unreal or speculative.
Que nem is an informal colloquial expression used widely in Brazil to mean like, just like, or as. It is used for straightforward comparisons and imitation and does not require the subjunctive. Que nem is highly conversational and appears in spoken Portuguese, music, and casual writing.
Grammar: Como se
Structure and mood
Como se is followed by a verb phrase. When the comparison is unreal, hypothetical, or contrary to fact, Brazilian Portuguese usually uses the imperfect subjunctive after como se. For present unreal situations, use the imperfect subjunctive; for past hypothetical situations, use the pluperfect subjunctive (less common in speech).
Common patterns:
como se + verbo no pretérito imperfeito do subjuntivo
como se + verbo no mais-que-perfeito do subjuntivo (formal/rare)
Examples with explanations
Ele age como se fosse dono do lugar.
Here the speaker implies that he is not actually the owner. Fosse is the imperfect subjunctive of ser.
Ela fala comigo como se não me conhecesse.
This implies that she actually does know the speaker, but she is pretending not to. Conhecesse is the imperfect subjunctive of conhecer.
Ele chorou como se tivesse perdido tudo.
This is a past hypothetical: he cried as if he had lost everything. Tivesse perdido is the compound subjunctive often used for past unreal comparisons.
Negative and reflexive uses
You can place negatives naturally: Ele fala como se não entendesse nada. Reflexive verbs and object pronouns behave normally: Ela age como se se importasse muito, implying she does not actually care.
When not to use the subjunctive
If como se introduces a direct comparison that is not hypothetical—more like a simple similitude—some speakers might accept the indicative. But the standard and safest choice in Brazilian Portuguese when implying unreality is the subjunctive.
Grammar: Que nem
Structure and tone
Que nem is informal and functions like the English word like or just like. It can introduce a comparison with nouns, pronouns, or clauses. It does not trigger the subjunctive and usually pairs with the indicative or infinitive depending on the structure.
Common patterns:
noun + que nem + noun
clause + que nem + clause
Examples with explanations
Ele dirige que nem um louco.
This is a colloquial way to say he drives like a madman. No subjunctive is used because this is a direct resemblance.
Ela canta que nem um anjo.
A straightforward comparison: she sings like an angel.
Fica que nem a mãe quando o filho some.
She gets like a mother when her child disappears. Natural, informal speech.
Variations and register
Que nem has many regional flavors. In fast spoken Portuguese you may hear que nem reduced to que in Brazil, though this can change meaning. For formal writing, prefer como or similar alternatives; que nem is best reserved for conversation, lyrics, or informal text.
Direct comparisons: when both can appear
Comparing similar ideas
Some sentences can use either como se or que nem, but the meaning shifts. Use como se to suggest unreality or pretense; use que nem to state likeness or imitation plainly.
Example pair:
Ele falou comigo como se eu não existisse.
Meaning he behaved as if I did not exist—implying a false assumption or attitude; requires the subjunctive.
Ele falou comigo que nem eu não existo.
This is more colloquial and means he spoke to me like I do not exist—a direct comparison to the way he treated the speaker, without the hypothetical nuance.
Nuance in tone
Using como se often sounds more evaluative or critical because it highlights a mismatch between reality and behavior. Using que nem is more descriptive and casual, focusing on similarity without implying pretense or contradiction.
Subjunctive mood: quick review
Imperfect subjunctive formation
To form the imperfect subjunctive (pretérito imperfeito do subjuntivo), start from the third-person plural of the preterite, drop -ram, and add the endings -sse, -sses, -sse, -ssemos, -sseis, -ssem. Example with falar: falaram → falasse, falasses, falasse, falássemos, falásseis, falassem.
Why the subjunctive matters after como se
The subjunctive marks doubt, unreality, or subjective attitude. After como se, Portuguese speakers generally use the subjunctive to show that the comparison is imagined or contrary to fact. This is a key grammatical signal that differentiates como se from simple comparisons.
When to avoid each expression
Avoid overusing como se
Because como se implies unreality, avoid it when you only mean a neutral similarity. For neutral comparisons, use plain como, similar a, or que nem in informal contexts.
Avoid using que nem in formal writing
Que nem is colloquial and can weaken formal register. In essays, reports, or formal emails, opt for como, tal como, parecido com, or similar expressions. In conversation, song lyrics, or social media, que nem is fine and natural.
Common combinations and colloquial expressions
Brazilian Portuguese has idiomatic uses where que nem becomes part of fixed phrases. For example: fica quieto que nem uma estátua, fala que nem papagaio. These are vivid, conversational images.
Como se also appears in idiomatic speech: age como se nada tivesse acontecido. This structure emphasizes denial or pretense and is common in storytelling and complaints.
Pronunciation and rhythm tips
In speech, Brazilians often reduce and blend words. Como se is pronounced smoothly as two syllables com-se, with a clear s sound. Que nem is often pronounced like keen or kem depending on regional accent. The tone and stress help signal whether the phrase is formal or informal: speak como se with measured rhythm and use a lighter, faster rhythm for que nem.
Cultural and usage notes
Brazilians use que nem frequently in everyday conversation, humor, and music. It conveys friendliness and informality. Como se, with its subjunctive mood, appears in richer narrative contexts and in expressions of judgment. Non-native speakers who master the nuance will sound more fluent: use que nem to fit casual settings and como se when you want to suggest pretense or unreality.
Common mistakes and how to fix them
Mistake: Using the indicative after como se when the meaning is hypothetical. Fix: Switch to the imperfect subjunctive. Wrong: Ele age como se é o chefe. Better: Ele age como se fosse o chefe.
Mistake: Using que nem in a formal report. Fix: Replace with como or tal como. Casual: Ele falou que nem se eu não existisse. Formal: Ele falou como se eu não existisse.
Short comparison summary
Como se: signals unreality, uses subjunctive, slightly formal or evaluative; translates as as if/as though.
Que nem: informal, no subjunctive required, direct similarity or imitation; translates as like/just like.
Conclusion
Mastering the difference between Como se and Que nem helps you express nuance and sound natural in Brazilian Portuguese. Use como se with the subjunctive to show unreal or pretend comparisons and choose que nem for casual, direct likeness. With attention to register and verb mood, you will convey meaning more precisely and fit into everyday Brazilian speech.
