La professora parla de l'examen de demà.

Yes. La is the feminine singular definite article, meaning the.

In Catalan, it is very normal to use the definite article before a noun like professora when you are talking about a specific person: La professora = the teacher.

This is similar to English here, but Catalan also uses articles in some places where English does not, so getting used to articles is important early on.

Because professora is the feminine form of teacher / female teacher, while professor is the masculine form.

• el professor = the male teacher
• la professora = the female teacher

The article and noun agree in gender:

• la professora
• el professor

Catalan often leaves out subject pronouns when the verb already shows who is doing the action.

So instead of saying:

• Ella parla de l'examen de demà

it is very natural to say simply:

• La professora parla de l'examen de demà

The verb parla already matches he/she/it speaks / is speaking, so the pronoun is usually unnecessary unless you want emphasis or contrast.

Parla is the 3rd person singular present form of parlar (to speak, to talk).

Present tense of parlar:

• jo parlo = I speak
• tu parles = you speak
• ell/ella/vostè parla = he/she/you speak(s)
• nosaltres parlem = we speak
• vosaltres parleu = you all speak
• ells/elles parlen = they speak

So La professora parla means The teacher talks / is talking.

Parlar can be used by itself, but when you say what the topic is, Catalan normally uses de:

• parlar de + noun/topic = to talk about + noun/topic

So:

• parla de l'examen = talks about the exam

This is something worth memorizing as a pattern:

• Parlem de música. = We talk about music.
• Parlen del problema. = They are talking about the problem.

Because el becomes l' before a vowel sound.

• el llibre = the book
• l'examen = the exam

This apostrophe avoids a clash of vowels and makes the phrase sound smoother.

So:

• el + examen → l'examen

Good question. Normally:

• de + el = del

But when el becomes l' before a vowel, you do not use del. You keep de l':

• de + el llibre → del llibre
• de + l'examen → de l'examen

So de l'examen is correct because the noun starts with a vowel and takes l'.

Because the two de phrases do different jobs.

1. parla de l'examen
   Here, de belongs to the expression parlar de = to talk about.

2. l'examen de demà
   Here, de connects exam with tomorrow, meaning something like:

   • tomorrow’s exam
   • the exam for tomorrow
   • the exam happening tomorrow

So the first de is part of the verb pattern, and the second de links the noun to time.

Literally, yes, but in natural English you would usually translate it more smoothly as:

• tomorrow’s exam
• the exam tomorrow
• the exam for tomorrow

Catalan often uses de + time word in places where English prefers an adjective-like structure or a different phrasing.

For example:

• la classe de demà = tomorrow’s class
• la reunió de dilluns = Monday’s meeting / the meeting on Monday

Because demà is an adverb/time expression meaning tomorrow, and in this structure Catalan does not use an article.

So:

• de demà = of tomorrow / for tomorrow

You would not say de el demà here.

It is the normal Catalan word order:

Subject + verb + complement

• La professora = subject
• parla = verb
• de l'examen de demà = complement

So the sentence structure is very straightforward and natural.

Yes. The Catalan present tense often covers both ideas:

• a general present: talks
• an ongoing present: is talking

So La professora parla de l'examen de demà can mean either, depending on context.

If the context is happening right now, English would often prefer is talking. If it is more general, English might prefer talks.

Examen is masculine, which is why the article is el / l':

• l'examen

Its pronunciation is roughly eg-ZAH-men or ek-ZAH-men, depending on accent and speech. The stress falls on the second syllable: xa.

The important grammar point for a learner is:

• examen is masculine
• before a vowel, el becomes l'
• so: l'examen

Sometimes, yes, but mestra and professora are not always exact equivalents.

In many contexts:

• mestra is more like schoolteacher, especially in primary education
• professora is often used for a teacher more generally, and especially in secondary school or higher education

So La professora is a very natural and safe choice here. Whether mestra works depends on the context.

Probably these four things:

1. Article + noun agreement

   • La professora

2. The present tense form

   • parla from parlar

3. The pattern parlar de

   • parlar de alguna cosa = to talk about something

4. Apostrophe before vowels

   • l'examen

If you understand those, you understand most of the grammar in the sentence.