El repartidor porta un parell de productes.

El is the masculine singular definite article, equivalent to the.

So el repartidor means the delivery person / the delivery man, referring to a specific one that is known from the context.

If you said un repartidor, that would mean a delivery person, introducing one that is not specific.

In this sentence, repartidor is masculine singular.

Common forms are:

• el repartidor = the male delivery person
• la repartidora = the female delivery person

In real usage, the masculine form can sometimes be used generically, but if you know the person is female, repartidora is the expected form.

Porta is the 3rd person singular present form of portar.

Here it means something like:

• carries
• takes
• brings

Depending on context, portar can also mean to wear:

• Porta una jaqueta = He/She is wearing a jacket

So porta does not always mean the same thing in English; the context tells you which translation fits best.

Un parell de literally means a pair of, but in everyday Catalan it often works like a couple of in English.

So:

• un parell de productes = a couple of products
• dos productes = two products

The difference is mainly one of nuance:

• dos sounds more exact and neutral
• un parell de can sound a little more natural, casual, or approximate depending on context

Sometimes un parell de really does mean exactly two, and sometimes it just means a small number.

Because parell is a quantity noun, and Catalan normally links this kind of expression with de.

The pattern is:

quantity expression + de + noun

Examples:

• un parell de productes
• un grup de persones
• una mica de pa
• molts de is not the standard pattern here, but with nouns like parell, grup, dotzena, you do use de

So de is required after parell before the thing being counted.

Because un parell de refers to more than one thing, so the following noun is plural:

• un parell de productes
• un parell de llibres
• un parell de dies

If there were only one item, you would use the singular noun instead:

• un producte = one product

After quantity expressions like un parell de, Catalan normally uses the noun directly, without an article.

So you say:

• un parell de productes

not usually:

• un parell dels productes unless you specifically mean a couple of the products

That distinction matters:

• un parell de productes = a couple of products
• un parell dels productes = a couple of the products

The second one refers to a specific known set of products.

Because porta is the 3rd person singular present form, and el repartidor is a singular subject.

Basic agreement here is:

• jo porto = I carry
• tu portes = you carry
• ell/ella porta = he/she carries
• nosaltres portem = we carry
• vosaltres porteu = you all carry
• ells/elles porten = they carry

So with el repartidor, the correct form is porta.

No, it is very standard Catalan word order:

Subject + verb + object

• El repartidor = subject
• porta = verb
• un parell de productes = object

This is the same basic order English usually uses:

• The delivery person carries a couple of products

Catalan can change word order for emphasis, but this sentence is completely normal and neutral.

Yes. Repartidor comes from repartir, meaning to distribute / deliver.

Depending on context, it can be translated as:

• delivery person
• delivery driver
• courier
• delivery man

The exact English word depends on the situation, but the Catalan word itself is very natural for someone whose job is delivering things.

A broad Central Catalan pronunciation would be roughly:

el rə-pər-ti-DOR POR-tə um pə-RELL də pro-DUK-təs

A few useful notes:

• repartidor has stress on the last syllable: -dor
• porta has stress on por-
• parell has stress on the second syllable: -rell
• productes has stress on duc

If you are learning a different variety, such as Valencian, the vowels may sound a bit different, but the structure of the sentence stays the same.