Todavía me quedan veintiocho páginas por leer.

Spanish often expresses this idea with quedar rather than tener.

• Me quedan veintiocho páginas por leer = I still have twenty-eight pages left to read
• Literally, it is closer to Twenty-eight pages remain to me to read

So quedar here means to remain / to be left, not to stay.

This structure is very common in Spanish:

• Me quedan dos euros. = I have two euros left.
• Nos quedan cinco minutos. = We have five minutes left.

Using tener is possible in other kinds of sentences, but for how much is left, quedar is extremely natural.

Me is an indirect object pronoun meaning to me / for me.

In this sentence:

• me quedan = are left to me / I have left

It shows who has those pages remaining.

Other examples:

• Te quedan tres días. = You have three days left.
• Le queda una oportunidad. = He/She has one opportunity left.
• Nos quedan muchas cosas por hacer. = We still have many things left to do.

So me is not optional here if you want to say I have left.

Because the subject is veintiocho páginas, which is plural.

With quedar, the verb agrees with the thing that remains, not with me.

• Me queda una página por leer. → una página is singular, so queda
• Me quedan veintiocho páginas por leer. → veintiocho páginas is plural, so quedan

This is often tricky for English speakers because English says I have, where the verb agrees with I. In Spanish here, the verb agrees with pages.

Yes. Grammatically, veintiocho páginas is the subject.

That may feel strange because in English the sentence is usually centered on I:

• I still have twenty-eight pages left to read

But in Spanish, the structure is more like:

• Twenty-eight pages still remain to me to read

That is why:

• the verb is plural: quedan
• the pronoun me is indirect object, not subject

Here todavía means still.

So:

• Todavía me quedan... = I still have... left

It adds the idea that the situation continues.

Compare:

• Me quedan veintiocho páginas por leer. = I have twenty-eight pages left to read.
• Todavía me quedan veintiocho páginas por leer. = I still have twenty-eight pages left to read.

In many contexts, todavía and aún can both mean still:

• Todavía me quedan...
• Aún me quedan...

Both are correct, though todavía is very common and natural.

Por + infinitive often means left to do, yet to do, or still to do.

So:

• páginas por leer = pages to read / pages left to read

Other examples:

• Tengo mucho por hacer. = I have a lot to do.
• Hay varias cosas por resolver. = There are several things to sort out.
• Nos queda trabajo por terminar. = We still have work to finish.

In this sentence, por leer describes the pages: they are pages that remain unread.

Yes, that is also correct and natural.

• Todavía tengo veintiocho páginas por leer
• Todavía me quedan veintiocho páginas por leer

Both can mean I still have twenty-eight pages left to read.

The difference is mostly one of perspective:

• tengo focuses on what I have
• me quedan focuses on what remains

In many situations, me quedan sounds especially natural when talking about something unfinished or time/resources remaining.

Yes. Spanish word order is flexible, and todavía can move around.

All of these are possible:

• Todavía me quedan veintiocho páginas por leer.
• Me quedan todavía veintiocho páginas por leer.
• Me quedan veintiocho páginas todavía por leer. (possible, but less neutral in many contexts)

The most neutral and common placement here is probably:

• Todavía me quedan veintiocho páginas por leer

Putting todavía at the beginning gives a clear still emphasis right away.

Because por + infinitive is the normal pattern for left to do / yet to do.

• páginas por leer = pages left to read

Para leer usually means for reading / in order to read / to be read in a different sense, and it does not usually express remaining in the same way.

Compare:

• Tengo tres capítulos por leer. = I have three chapters left to read.
• Un libro para leer en verano. = A book to read in summer

So in this sentence, por leer is the right choice.

Spanish usually expresses left here through structures like:

• quedar
• por + infinitive

So instead of translating word for word from English, Spanish says the idea differently:

• Me quedan veintiocho páginas por leer

This is very common in Spanish. Direct translation from English often sounds unnatural, so it is better to learn the whole pattern:

• me queda / me quedan + noun + por + infinitive

Often, yes—at least slightly.

Both can mean still:

• Todavía me quedan veintiocho páginas por leer.
• Aún me quedan veintiocho páginas por leer.

In everyday speech, todavía is extremely common. Aún can sound a bit more literary or formal in some contexts, though it is also perfectly normal Spanish.

For most learners, todavía is the safest everyday choice.

You would make the noun and verb singular:

• Todavía me queda una página por leer.

Changes:

• quedan → queda
• veintiocho páginas → una página

The pronoun me stays the same.

Yes.

• Me quedan veintiocho páginas por leer.

This still means I have twenty-eight pages left to read. It simply removes the explicit still.

So:

• with todavía = emphasizes that the situation continues
• without todavía = more neutral statement of what remains

Yes, very much so. It is completely natural in Spain.

In fact, this pattern is common across the Spanish-speaking world:

• me queda / me quedan
• por + infinitive

So this is not just correct grammar; it is also an authentic, everyday way to say the idea.

Here are some very useful patterns:

• Me quedan dos capítulos por estudiar.
  I have two chapters left to study.

• Nos quedan diez minutos por esperar.
  We still have ten minutes to wait.

• Te queda mucho por aprender.
  You still have a lot to learn.

• Le quedan tres exámenes por hacer.
  He/She still has three exams left to do.

• Todavía me queda trabajo por terminar.
  I still have work left to finish.

A great model to remember is:

(Todavía) + indirect object pronoun + quedar + noun + por + infinitive

For example:

• Todavía me quedan + veintiocho páginas + por leer