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Se vires uma mancha no folheto, limpa-a antes de o dobrares.

Se vires uma mancha no folheto, limpa-a antes de o dobrares.
If you see a stain on the leaflet, clean it before folding it.

Breakdown of Se vires uma mancha no folheto, limpa-a antes de o dobrares.

limpar
to clean
antes de
before
uma
a
se
if
ver
to see
em
on
o
it
a
it
o folheto
the leaflet
dobrar
to fold
a mancha
the stain
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Questions & Answers about Se vires uma mancha no folheto, limpa-a antes de o dobrares.

Why is vires used after se instead of vês?

Because after se meaning if, Portuguese often uses the future subjunctive when talking about a possible future situation.

So:

  • se vires = if you see
  • tu vês = you see / you do see in the present

This is very common in Portuguese:

  • Se tiveres tempo, liga-me. = If you have time, call me.
  • Se fores ao centro, compra pão. = If you go downtown, buy bread.

So se vires is the normal form here.

How can I tell that this sentence is addressing tu?

Several forms show that the sentence is talking to tu:

  • vires = future subjunctive, tu form
  • limpa = affirmative imperative for tu
  • dobrares = personal infinitive, tu form

So the whole sentence is an informal singular instruction: you = tu.

If it were formal você, it would be:

  • Se vir uma mancha no folheto, limpe-a antes de o dobrar.
Is limpa-a a command?

Yes. Limpa-a is an affirmative command directed at tu.

  • limpa = clean
  • a = it (referring to mancha)

So limpa-a means clean it.

This is the imperative, not a statement.

Why is it limpa-a and not a limpa?

Because in European Portuguese, object pronouns often come after the verb in affirmative main clauses and affirmative commands. This is called enclisis.

So:

  • limpa-a = clean it
  • not a limpa

This is especially normal in commands:

  • Fecha a porta. = Close the door.
  • Fecha-a. = Close it.

A useful contrast:

  • Limpa-a. = Clean it.
  • Não a limpes. = Don’t clean it.

In the negative sentence, the pronoun moves before the verb.

Why is there a hyphen in limpa-a?

When a clitic object pronoun is attached after the verb in Portuguese, it is written with a hyphen.

So:

  • limpa-a
  • fecha-o
  • compra-as

The hyphen is standard spelling, not optional.

Why is the pronoun a used in limpa-a?

Because it refers to uma mancha, and mancha is a feminine singular noun.

So the direct object pronoun must also be feminine singular:

  • a mancha → a
  • o folheto → o

Examples:

  • Vejo a mancha. → Vejo-a.
  • Vejo o folheto. → Vejo-o.
What does no folheto mean, and why is it no?

No is a contraction of:

  • em + o = no

So:

  • no folheto = on the leaflet / in the leaflet / on the brochure, depending on context

Portuguese regularly contracts em with the definite article:

  • em + a = na
  • em + os = nos
  • em + as = nas

So no folheto is just the normal contracted form.

What is happening in antes de o dobrares?

This part means before you fold it.

It breaks down like this:

  • antes de = before
  • o = it (referring to folheto)
  • dobrares = you fold / literally an inflected infinitive form for tu

So the structure is:

  • antes de o dobrares = before folding it / before you fold it

English usually uses a finite clause like before you fold it, but Portuguese often uses antes de + infinitive, and here that infinitive is inflected for the subject.

Why is it dobrares and not just dobrar?

Because Portuguese has something called the personal infinitive. This is an infinitive that can change form to show who the subject is.

For dobrar, the relevant forms are:

  • dobrar = uninflected infinitive
  • dobrares = personal infinitive for tu

So dobrares makes the subject explicit: you fold.

In this sentence, antes de o dobrares sounds very natural in European Portuguese because the subject is clearly tu.

Why is there an o before dobrares?

That o is the direct object pronoun it, referring to o folheto.

So:

  • dobrares = to fold / for you to fold
  • o dobrares = to fold it / for you to fold it

Portuguese often uses a pronoun instead of repeating the noun:

  • antes de dobrares o folheto
  • antes de o dobrares

Both express the same basic idea, but the pronoun avoids repetition.

Why doesn’t de o become do in antes de o dobrares?

Because this o is not the masculine article the. It is the object pronoun it.

Portuguese contracts prepositions with articles:

  • de + o = do
  • de + a = da

But here o is a pronoun, so standard Portuguese keeps them separate:

  • antes de o dobrares
  • not antes do dobrares

So the lack of contraction is grammatical and expected.

Could I also say antes de dobrares o folheto?

Yes. That is also grammatical.

Compare:

  • antes de o dobrares = before you fold it
  • antes de dobrares o folheto = before you fold the leaflet

The version in the original sentence is more compact because folheto has already been mentioned, so Portuguese naturally replaces it with o.

In other words, the original sentence avoids repeating the noun.