Vull mirar la pàgina de la classe abans de sopar.

Catalan often drops the subject pronoun when it is clear from the verb form. Vull already means I want, so jo is not necessary.

You can add jo for emphasis or contrast:

• Jo vull mirar la pàgina, no ell. = I want to look at the page, not him.

Yes. Vull is the 1st person singular present form of voler = to want.

So:

• vull = I want
• vols = you want
• vol = he/she wants

It is a common irregular verb, so it is worth memorizing early.

After voler, Catalan uses the infinitive directly:

• vull mirar = I want to look
• vull sopar = I want to have dinner

English uses to before the second verb, but Catalan does not here. So vull mirar is literally more like I want look, even though in natural English we say I want to look.

Mirar means to look at, to watch, or to check something deliberately.
Veure means to see.

In this sentence, mirar is used because the speaker intends to look at/check the page. That is more active than simply seeing it.

Here la pàgina means the page, a specific page that both speaker and listener can identify from context.

Catalan uses articles very naturally in cases where English also often uses them. Without the article, pàgina would sound more indefinite or less complete in this sentence.

Catalan usually connects nouns with de rather than putting one noun directly in front of another the way English often does.

So English:

• the class page

becomes Catalan:

• la pàgina de la classe

This structure is extremely common in Catalan.

Because de only contracts with el, not with la.

So:

• de + el = del
• de + la = de la

That means:

• del professor
• de la classe

So de la classe is exactly what you should expect.

It uses the pattern abans de + infinitive, which means before doing something.

So:

• abans de sopar = before having dinner
• abans de sortir = before leaving
• abans d’estudiar = before studying

The de is required before the infinitive in this structure.

Yes, sopar can be both:

• a verb: to have dinner
• a noun: dinner

In abans de sopar, it is a verb in the infinitive: before having dinner.

If you wanted the noun, you might say:

• abans del sopar = before the dinner / before dinner

That sounds more like referring to the meal as an event or specific dinner.

The accent shows where the stress goes and also helps mark the vowel quality.

So pàgina is stressed on the first syllable:

• PÀ-gi-na

Without the accent, a learner might guess the stress incorrectly. Catalan spelling uses accents quite systematically, so they are important.

A rough guide is bool with a special ll sound at the end. In many varieties of Catalan, that ll is a palatal sound that English does not really have, and in some dialects it may sound closer to y.

Also, in most Catalan pronunciation, v and b sound the same or very similar, so vull usually starts with a b-like sound, not an English v.

Yes, to some extent. The original order is very natural:

• Vull mirar la pàgina de la classe abans de sopar.

But you could also move the time expression for emphasis:

• Abans de sopar, vull mirar la pàgina de la classe.

Both are correct. The original version is the most neutral.