La meva companya dubta que la reunió comenci a temps, i per això està nerviosa.

In standard Catalan, possessives are usually used with the definite article:

• el meu amic
• la meva companya
• les nostres coses

So la meva companya is the normal way to say it. This is different from English, where you just say my colleague without any article.

They all agree with a feminine singular person.

• companya is a feminine noun
• meva is the feminine singular form of my
• nerviosa is the feminine singular form of nervous

If the person were masculine, you would get:

• el meu company
• està nerviós

Catalan agreement is very important, so adjectives and possessives usually match the gender and number of the noun they refer to.

Companya can mean several things depending on context, such as:

• colleague
• classmate
• companion
• partner

It is the feminine form of company. The exact English choice depends on the situation, but grammatically it is simply a feminine noun referring to a female person.

Here que introduces a subordinate clause, much like English that:

• dubta que... = doubts that...

In Catalan, this que is usually required. English often omits that, but Catalan normally keeps que:

• Crec que vindrà.
• Dubta que comenci a temps.

So in this sentence, que links dubta to the idea that follows.

Because dubtar que normally triggers the subjunctive.

• comença = present indicative
• comenci = present subjunctive

After expressions of doubt, uncertainty, denial, emotion, or possibility, Catalan often uses the subjunctive in the following clause. Since the sentence says she doubts the meeting will start on time, comenci is the expected form.

Comenci is the present subjunctive, 3rd person singular, of començar.

A few forms are:

• jo comenci
• tu comencis
• ell / ella comenci
• nosaltres comencem
• vosaltres comenceu
• ells / elles comencin

In the sentence, the subject of comenci is la reunió, which is singular, so comenci is the right form.

This is a spelling change to keep the soft c sound before i.

The infinitive is començar, but in some forms the spelling changes:

• començo
• comenci
• comencin

This happens because Catalan spelling tries to preserve pronunciation. Without that change, the sound would be different.

Yes. A temps is a very common expression meaning on time or in time, depending on context.

Examples:

• Arribar a temps = to arrive on time / in time
• Començar a temps = to start on time

So in this sentence, la reunió comenci a temps means the meeting starts when it is supposed to, not late.

Per això means for that reason, because of that, or therefore.

It connects the two ideas:

• she doubts the meeting will start on time
• as a result, she is nervous

So i per això està nerviosa means and that is why she is nervous.

Catalan usually uses estar for a temporary state or condition, and ser for more permanent identity or characteristics.

So:

• està nerviosa = she is nervous right now
• és nerviosa = she is a nervous person in general

In this sentence, the nervousness is clearly caused by the situation, so està nerviosa is the natural choice.

Catalan often leaves out subject pronouns when the subject is already clear from context or from the verb form.

So after La meva companya..., Catalan does not need to repeat ella:

• La meva companya dubta..., i per això està nerviosa.

That sounds natural. You could add ella for emphasis, but normally it is omitted.

The comma helps separate the first idea from the result that follows. It marks a natural pause before the connector per això.

Catalan does not always use a comma before i, but it can appear when:

• the sentence is a bit longer
• the second part adds a consequence or explanation
• the writer wants to make the structure clearer

So the comma here is perfectly natural and helps readability.

The written accent in reunió shows that the stress falls on the last syllable:

• re-u-ni-ó

That final ó is stressed. The accent mark is important because it tells you the word is not stressed earlier. Many Catalan nouns ending in -ió follow this pattern, such as:

• nació
• opinió
• situació

So when reading the sentence aloud, be sure to stress the last syllable of reunió.