Tenen no només experiència laboral sinó també formació.

Catalan often leaves out subject pronouns when the verb already makes the subject clear.

• tenen = they have
• So ells tenen is possible, but ells is usually unnecessary unless you want emphasis or contrast.

This is very common in Catalan, much more than in English.

Tenen is the 3rd person plural form of the verb tenir = to have.

So:

• jo tinc = I have
• tu tens = you have
• ell/ella té = he/she has
• nosaltres tenim = we have
• vosaltres teniu = you all have
• ells/elles tenen = they have

In this sentence, tenen most naturally means they have.

This is the Catalan structure for not only ... but also.

So:

• no només = not only
• sinó també = but also

In your sentence:

• Tenen no només experiència laboral sinó també formació.
• = They have not only work experience but also training/education.

This is a very common fixed pattern in Catalan.

These are two different things in Catalan.

• sinó is used after a negative idea and means something like but rather / but instead / but
• si no literally means if not

Here you need sinó because the sentence is making a contrast:

• no només X sinó també Y = not only X but also Y

So sinó is the correct form.

Catalan often omits the article with abstract or general nouns, especially after verbs like tenir.

So:

• tenir experiència = to have experience
• tenir formació = to have training / education

This sounds natural in Catalan.
English sometimes also does this with experience, but not always in the same way.

If you added articles, the meaning could become more specific depending on context:

• la formació = the training / the education
• l’experiència laboral = the work experience

But in this sentence, the general idea is more natural without articles.

It can mean either, depending on context.

In a sentence like this, formació usually refers to someone's training, educational background, or qualifications.

So possible English translations could be:

• training
• education
• academic background
• qualifications

It does not always mean formal schooling only. It can be broader than that.

In Catalan, adjectives often come after the noun.

So:

• experiència laboral = work experience
• literally: experience work-related

This is very normal Catalan word order.

Compare:

• formació professional
• mercat laboral
• vida personal

English often puts this kind of modifier before the noun, but Catalan commonly puts it after.

Yes. That is also correct, and many learners may find it easier to recognize because it matches the English structure more closely:

• No només tenen experiència laboral, sinó també formació.

Both versions are grammatical:

• Tenen no només experiència laboral sinó també formació.
• No només tenen experiència laboral, sinó també formació.

The difference is mainly one of emphasis and style.
Putting no només earlier can make the not only ... but also structure stand out more clearly.

A comma is often used, especially when the sentence is a bit longer:

• No només tenen experiència laboral, sinó també formació.

But punctuation can vary, and you may also see it without a comma, especially in shorter sentences or less formal writing.

So if you are writing carefully, using a comma before sinó també is often a good idea, but the version without it is not surprising.

The accent marks show where the stress goes.

• només → stress on the second syllable
• experiència → stress on the èn
• formació → stress on the final syllable

These accents are important in written Catalan because they help with pronunciation and sometimes distinguish words.

A rough pronunciation guide:

• només ≈ no-MES
• experiència ≈ eks-peh-ree-EN-see-ah
• formació ≈ fur-ma-see-O

The exact pronunciation depends somewhat on the variety of Catalan.

Yes, in the right context it could also refer to you in a formal plural sense, with vostès understood.

So:

• Tenen can mean they have
• or you have when speaking formally to more than one person

However, without extra context, learners will usually understand it here as they have.