La professora vol que escriguem una opinió sobre la funció i que dilluns la lliurem.

Because after vol que (wants that...), Catalan normally uses the subjunctive.

• escrivim = we write / we are writing (indicative)
• escriguem = that we write (present subjunctive)

So:

• La professora vol que escriguem... = The teacher wants us to write...

A useful rule is: after verbs of wanting, asking, recommending, etc., Catalan often uses que + subjunctive when the subject changes.

Compare:

• La professora vol escriure... = The teacher wants to write...
  same subject, so infinitive
• La professora vol que escriguem... = The teacher wants us to write...
  different subject, so que + subjunctive

Because both actions depend on vol.

The structure is:

• La professora vol
  
  • que escriguem una opinió sobre la funció
  • i que dilluns la lliurem

In English, we might say The teacher wants us to write... and hand it in on Monday, without repeating that. In Catalan, repeating que is very natural and often clearer.

So the second que shows that lliurem is also part of what the teacher wants.

La is a direct object pronoun referring back to una opinió.

• una opinió is feminine singular
• so the pronoun replacing it is la

Full idea:

• escriguem una opinió... i que dilluns la lliurem
• write an opinion... and hand it in on Monday

Literally, la lliurem = we hand it in / we hand it over

Catalan avoids repeating the noun and uses the pronoun instead.

Because in Catalan, object pronouns normally go before a conjugated verb.

So:

• la lliurem = we hand it in
• not lliurem la in this kind of sentence

This is one of the big differences from English. Catalan clitic pronouns usually come before the verb:

• la veig = I see her/it
• el tenim = we have it
• la lliurem = we hand it in

Yes — in this case, the 1st person plural present subjunctive and the 1st person plural present indicative look the same.

For lliurar:

• indicative: lliurem
• subjunctive: lliurem

So even though the form is identical, the function is subjunctive because it depends on vol que.

That means:

• que dilluns la lliurem is still subjunctive in meaning and grammar
• it just happens that the form does not visibly change here

This is common with some -ar verbs in Catalan.

Because Catalan usually does not need a preposition before days of the week in this kind of time expression.

So:

• dilluns = on Monday
• dimarts = on Tuesday
• dimecres = on Wednesday

That is completely normal Catalan.

So que dilluns la lliurem means that we hand it in on Monday.

Sobre means about, regarding, or on the topic of.

So:

• una opinió sobre la funció = an opinion about the play/performance

The article la is there because it refers to a specific function/performance that both speaker and listener know about.

So:

• sobre la funció = about the performance
• not just about a performance in general

Not necessarily. Funció can mean different things depending on context.

Common meanings include:

• function
• role
• performance / show / play showing

In a school context like this sentence, la funció often means the play or the performance students saw.

So even if the basic dictionary meaning is function, the natural meaning here is probably the performance/show.

Because the sentence is introducing it as an opinion piece / an opinion, not referring to one specific previously identified opinion.

• una opinió = an opinion
• l’opinió = the opinion

So the teacher wants them to write some opinion text, not a specific opinion already mentioned earlier.

In context, una opinió can sound a bit like a short opinion piece, a comment, or even a review, depending on the class task.

Because gender does not affect the verb form in Catalan — only person and number do.

• la professora = feminine singular noun
• so the verb is vol = wants (3rd person singular)

If it were plural, then the verb would change:

• La professora vol... = The teacher wants...
• Les professores volen... = The teachers want...

So vol is singular because la professora is one person.

Yes, Catalan word order is fairly flexible.

Both of these are possible:

• que dilluns la lliurem
• que la lliurem dilluns

The version with dilluns first puts a little more focus on the time — the deadline. It sounds very natural in this sentence.

What normally stays the same is the pronoun placement:

• la lliurem
• not lliurem la in this structure

So the exact word order can shift, but the pronoun still goes before the conjugated verb.