¿Clasificas la ropa y, ya de paso, la doblas?

Spanish often uses the present tense in a yes/no question to make a request sound less blunt.

So:

• ¿Clasificas la ropa...? can mean Will you sort the clothes...? / Can you sort the clothes...?
• It is not just a neutral factual question; in context, it can function as a request.

If you used the imperative:

• Clasifica la ropa y, ya de paso, dóblala.

that would sound more direct: Sort the clothes and, while you're at it, fold them.

So the version with clasificas is softer and more conversational.

Because Spanish usually leaves out subject pronouns when the verb ending already makes the subject clear.

Here:

• clasificas = you sort
• doblas = you fold

The -as ending already tells you the subject is tú, so saying tú is unnecessary unless you want emphasis or contrast.

For example:

• ¿Tú clasificas la ropa...? would sound more emphatic, like Are you sorting the clothes...?

Ya de paso is an idiomatic expression meaning something like:

• while you're at it
• since you're doing that anyway
• taking the opportunity

In this sentence, it adds the idea that folding the clothes would be a convenient extra thing to do after sorting them.

A rough sense is:

• Sort the clothes and, while you're at it, fold them too.

The phrase is very common in everyday Spanish.

De paso by itself can mean while you're at it, in passing, or incidentally.

Adding ya often makes it sound more natural and a bit more colloquial here. It gives the idea of since we're already on that step / since you're already doing that.

So:

• de paso = while at it / incidentally
• ya de paso = while you're at it anyway / since you're already doing that

The difference is subtle, but ya de paso is very idiomatic in spoken Spanish.

Because ya de paso is inserted as a parenthetical expression.

It interrupts the main structure of the sentence:

• main idea: ¿Clasificas la ropa y la doblas?
• inserted comment: ya de paso

So the commas work like they do in English in a sentence such as:

• Do you sort the clothes and, while you're at it, fold them?

They help show that ya de paso is an added comment rather than part of the core grammar.

Because ropa is a singular collective noun in Spanish.

It refers to clothing/clothes in general, but grammatically it is singular and feminine:

• la ropa
• la ropa limpia
• la doblas

So even though English uses a plural idea, Spanish treats ropa as a singular noun.

This is very normal:

• La ropa está mojada. = The clothes are wet.

La is a direct object pronoun replacing la ropa.

Instead of repeating the noun, Spanish uses the pronoun:

• ¿Clasificas la ropa y doblas la ropa?
  sounds repetitive
• ¿Clasificas la ropa y la doblas?
  is the natural version

It is la because:

• ropa is feminine
• ropa is singular

So even though English would say fold them, Spanish says la doblas because the noun behind it is grammatically singular.

Because with a fully conjugated verb, object pronouns normally go before the verb.

Here doblas is a conjugated present-tense verb, so the normal structure is:

• la doblas

Spanish attaches object pronouns to the end only with:

• infinitives: doblarla
• gerunds: doblándola
• affirmative commands: dóblala

So in this sentence:

• ¿...y la doblas? is correct
• ¿...y doblarla? would not work in the same structure

It is grammatically correct and fully understandable, but in everyday speech it may sound a little more formal or systematic than some other options.

Depending on what you mean, people in Spain might also say:

• separar la ropa = separate the clothes
• ordenar la ropa = arrange/tidy the clothes

For laundry, separar la ropa is often very natural if you mean sorting by color, fabric, etc.

So clasificar is not wrong, but it can sound a bit more like classify/categorize than ordinary household speech sometimes does.

Yes. The forms clasificas and doblas are tú forms, so the sentence is informal singular.

A formal usted version would be:

• ¿Clasifica la ropa y, ya de paso, la dobla?

That is grammatically correct, but in real life a more natural polite request would often be something like:

• ¿Puede clasificar la ropa y, ya de paso, doblarla?
• ¿Podrías clasificar la ropa y, ya de paso, doblarla?
  if speaking informally but politely

So the original sounds like you are talking casually to one person you address as tú.

Standard Spanish uses an opening question mark ¿ and a closing one ?.

So:

• ¿Clasificas la ropa y, ya de paso, la doblas?

This helps the reader know from the beginning that the sentence is a question. That is especially useful in Spanish because word order often stays similar to a statement.

Compare:

• Clasificas la ropa. = You sort the clothes.
• ¿Clasificas la ropa? = Do you sort the clothes? / Will you sort the clothes?

The opening mark tells you immediately how to read the sentence.