Quina talla necessita la meva filla?

Quina means which or what ... when it is followed by a noun and agrees with that noun.

Here, quina talla means what size / which size.

You would not use què here, because què means what on its own, not directly before a noun.

• Quina talla necessita la meva filla? = What size does my daughter need?
• Què necessita la meva filla? = What does my daughter need?

So the difference is:

• què = what?
• quina + noun = which/what + noun?

Because quina agrees with talla, and talla is a feminine singular noun.

The forms are:

• quin = masculine singular
• quina = feminine singular
• quins = masculine plural
• quines = feminine plural

Examples:

• Quin color? = Which color?
• Quina talla? = What size?
• Quins pantalons? = Which trousers?
• Quines sabates? = Which shoes?

So in this sentence, quina matches talla.

In this context, talla means size, especially for clothes, shoes, or similar items.

Very common examples:

• Quina talla porta? = What size does she wear?
• Necessito una talla més gran. = I need a bigger size.

So talla is the standard word you would expect in a shop or when talking about clothing sizes.

Necessita is the third person singular present tense of necessitar (to need).

Conjugation in the present tense:

• jo necessito = I need
• tu necessites = you need
• ell/ella necessita = he/she needs
• nosaltres necessitem = we need
• vosaltres necessiteu = you all need
• ells/elles necessiten = they need

In this sentence, the subject is la meva filla (my daughter), so necessita is the correct form.

Because Catalan does not use do/does support the way English does.

In English, questions often need do/does/did:

• What size does she need?

In Catalan, the main verb stays as it is:

• Quina talla necessita?

So Catalan forms this kind of question without adding an extra auxiliary like does.

Catalan commonly puts the question word or question phrase first, followed by the verb, and then the subject may come after it.

So:

• Quina talla = question phrase
• necessita = verb
• la meva filla = subject

This word order is very natural in Catalan.

A more English-like order such as La meva filla necessita quina talla? would sound unusual in normal speech unless you were using special emphasis.

Catalan usually uses the definite article before a possessive:

• la meva filla = my daughter
• el meu germà = my brother
• la nostra casa = our house

This is one of the things that often feels strange to English speakers, because English does not use an article there.

So Catalan normally says:

• la meva mare
• el seu cotxe
• els nostres amics

rather than leaving out the article.

Yes. Although the article + possessive is the normal pattern, there are some exceptions.

For example, the article is often omitted:

• in some forms of address or family contexts
• in certain fixed expressions
• with some kinship terms in very close or direct reference

But for a learner, the safest rule is:

• normally say el/la/els/les + possessive + noun

So la meva filla is exactly what you should expect here.

Yes, necessitar is perfectly correct and natural.

It means to need, and in this sentence it asks what size is needed for the daughter.

That said, in clothing contexts, Catalan also often uses verbs like portar (to wear) depending on the situation:

• Quina talla porta la teva filla? = What size does your daughter wear?

The difference is slight:

• necessita focuses on the size she needs
• porta focuses on the size she wears

In a shop, both ideas can be useful, but your sentence is completely normal.

A rough pronunciation for an English speaker would be something like:

KEE-nuh TAH-yuh neh-seh-SEE-tuh luh MEH-vuh FEE-yuh

A few useful notes:

• qui in quina sounds like kee
• ll in many varieties of Catalan sounds like a y sound
• v in standard Catalan is often pronounced close to b
• filla sounds roughly like FEE-yuh

Pronunciation varies somewhat by region, but this approximation will help you get started.

The structure is:

Question word + noun + verb + subject

More specifically:

• Quina talla = question phrase
• necessita = verb
• la meva filla = subject

So you can think of it as:

What size needs my daughter?

Of course, that is not good English, but it helps show the Catalan structure.

A very similar pattern appears in many Catalan questions:

• Quin llibre llegeix el noi? = Which book is the boy reading?
• Quina música escolta la teva germana? = What music does your sister listen to?

In some varieties of Catalan, especially more regional or traditional usage, forms like ma, mon, mos, etc. can appear instead of meva, meu, meus, and so on.

So ma filla may exist regionally, but for standard general learning, la meva filla is the safest and most widely useful form.

If you are learning standard Catalan, stick with:

• la meva filla
• el meu fill
• la meva mare

No. Standard Catalan normally uses only the final question mark:

• Quina talla necessita la meva filla?

It does not usually use an inverted opening question mark like Spanish.

So the punctuation in your sentence is normal Catalan punctuation.