Pregunten no només per la disponibilitat sinó també pel sou.

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

• pregunten = they ask / you all ask / they are asking, depending on context
• ells pregunten would also be correct, but ells is usually only added for emphasis, contrast, or clarity.

So in this sentence, the subject is simply understood from the verb form.

Pregunten is the 3rd person plural present indicative of preguntar.

It can mean:

• they ask
• they are asking

Catalan present tense often covers both the simple present and the present continuous, depending on context.

In Catalan, preguntar per means to ask about or to inquire about something.

So:

• preguntar per la disponibilitat = to ask about availability
• preguntar pel sou = to ask about salary

This is different from English, where we usually just say ask about. In Catalan, the preposition per is part of the normal structure in this meaning.

Pel is the contraction of per + el.

So:

• per + el = pel
• per + els = pels

That means:

• pel sou = per el sou

This contraction is required in normal Catalan.

This is a very common Catalan structure meaning not only ... but also ...

In your sentence:

• no només per la disponibilitat
• sinó també pel sou

Together: not only about availability but also about salary

A few notes:

• no només = not only
• sinó també = but also
• sinó is used after a negative idea to add a correction or addition.

This pattern is very useful and common in both spoken and written Catalan.

This is a very common question.

• però means but
• sinó is used after a negative statement to mean something like but rather or but instead, and it can also appear in the pattern no només ... sinó també ...

Examples:

• No és blau, sinó verd.
  = It isn’t blue, but rather green.

• No només estudia, sinó que també treballa.
  = He not only studies, but also works.

So in your sentence, sinó també is the correct connector after no només.

Catalan uses definite articles more often than English does.

So Catalan naturally says:

• la disponibilitat
• el sou

Even where English might say simply availability or salary, Catalan often prefers the article when talking about the concept in a general or specific context.

This is very normal and does not necessarily mean the in a strongly specific English sense.

Usually yes, but context matters.

Disponibilitat commonly means:

• availability
• willingness to be available
• time/ability to do something

In work or interview contexts, la disponibilitat often refers to:

• when someone can start
• schedule availability
• whether they are free for certain hours or shifts

So the word is broad, like English availability, but the exact nuance depends on the situation.

Sou usually means salary/pay in a general employment sense.

Depending on context, it may be translated as:

• salary
• pay
• wages

It is a common word when talking about compensation for work. In many contexts, translating it as salary is fine, but pay may sound more natural in English depending on the sentence.

Yes, Catalan allows some flexibility, but the given version is the most natural standard structure:

• Pregunten no només per la disponibilitat sinó també pel sou.

You may sometimes see slightly different word order in other contexts, but with the pattern no només ... sinó també ..., this placement is very standard and clear.

So for a learner, it is best to remember the expression as a fixed structure:

• no només X sinó també Y

A helpful breakdown is:

• Pregunten = verb
• no només per la disponibilitat = first prepositional phrase
• sinó també pel sou = second parallel prepositional phrase

So the sentence is built like this:

• They ask
• not only about X
• but also about Y

This parallel structure is important:

• per la disponibilitat
• pel sou

Both parts depend on pregunten and are linked by no només ... sinó també ...