La meva filla vol escriure avui.

In Catalan, possessive adjectives like meu / meva / meus / meves are usually used together with the definite article.

So Catalan says:

la meva filla = literally the my daughter, but naturally it means my daughter

This is normal Catalan grammar, not extra emphasis. You will also see:

el meu pare = my father
la meva mare = my mother
els meus amics = my friends

Because meva has to agree with filla, which is a feminine singular noun.

Here is the pattern:

• meu = masculine singular
• meva = feminine singular
• meus = masculine plural
• meves = feminine plural

So:

el meu fill = my son
la meva filla = my daughter

Vol is the third person singular present tense of the verb voler, meaning to want.

So:

• jo vull = I want
• tu vols = you want
• ell / ella vol = he / she wants

In this sentence, the subject is la meva filla, so the verb must be vol:

La meva filla vol... = My daughter wants...

Because after voler in this kind of structure, the second verb stays in the infinitive.

So Catalan works like this:

vol escriure = wants to write
vol menjar = wants to eat
vol dormir = wants to sleep

Only the first verb, vol, is conjugated. The second verb, escriure, stays in its basic form.

Catalan does not need a separate word like English to here.

English says:

wants to write

Catalan says:

vol escriure

So escriure by itself is the infinitive to write, and after vol, you simply place that infinitive directly.

Yes. By itself, vol can mean:

• he wants
• she wants
• sometimes it wants, depending on context

Catalan often relies on the subject or the surrounding context to show who is doing the action.

In this sentence, la meva filla makes it clear that the meaning is she wants.

Yes, avui can move. Putting it at the end is very natural:

La meva filla vol escriure avui.

But Catalan also allows:

Avui la meva filla vol escriure.
La meva filla avui vol escriure.

The basic meaning stays the same, but the emphasis can change slightly. Starting with avui puts more focus on today.

Often, yes. Catalan is a language that frequently drops subject pronouns and even leaves the subject noun phrase unspoken if it is already clear from context.

So if everyone already knows you are talking about your daughter, you might simply say:

Vol escriure avui.

That means She wants to write today, if the context makes the subject clear.

However, using la meva filla is perfectly normal when you want to state the subject explicitly.

The tricky part is ll.

In standard Catalan, ll is usually a palatal sound, similar to the traditional Spanish ll, though in some accents it may sound closer to y.

So filla is roughly like FEE-lya for an English speaker, though the exact sound depends on the dialect.

The important thing is that it is not pronounced like English l-l separately.

No. Avui specifically means today.

So:

La meva filla vol escriure avui. = My daughter wants to write today.

If you wanted ideas like now, currently, or these days, Catalan would normally use different expressions, such as ara or avui dia, depending on the meaning.