El formulario de candidatura incluye la experiencia demostrable.

Spanish often uses the definite article more than English does. In this sentence, el formulario means the form, and la experiencia means the experience.

This sounds natural in Spanish because the sentence is talking about specific things:

• el formulario = the application form in question
• la experiencia demostrable = the demonstrable experience as a category or required item

English sometimes drops the where Spanish keeps it.

Formulario de candidatura literally means form of application/candidacy.

The structure noun + de + noun is extremely common in Spanish and often corresponds to English expressions like:

• application form
• registration form
• job application form

So:

• formulario = form
• de candidatura = of application / for candidacy

In natural English, you would usually not translate it word-for-word as form of candidacy. You would usually say application form.

It can be, especially in formal, academic, professional, or recruitment contexts. In Spain, candidatura often refers to a person’s application or candidacy for a post, programme, or opportunity.

Depending on context, you may also see:

• solicitud = application/request
• inscripción = registration/enrolment
• candidatura = candidacy/application, often when presenting oneself as a candidate

So formulario de candidatura is understandable and natural in the right context, though other phrases may also be common.

Incluye comes from the verb incluir, meaning to include.

Here it is in the third person singular present tense, because the subject is el formulario, which is singular.

Conjugation:

• yo incluyo = I include
• tú incluyes = you include
• él/ella/usted incluye = he/she/you include

So:

• El formulario incluye... = The form includes...

In Spanish, la experiencia can be used as an uncountable noun, just like experience in English.

Here it refers to experience in a general sense, not to separate individual experiences. So:

• la experiencia demostrable = demonstrable/provable experience

If you wanted to talk about separate items or events, you might use the plural:

• las experiencias

But in job and application language, the singular experiencia is very common.

Demostrable means demonstrable, provable, or able to be shown/proven.

In this context, it means experience that can be backed up or evidenced, for example through:

• previous jobs
• references
• certificates
• documented achievements

So it does not mean that the experience has already been demonstrated in the sentence itself. It means it is the kind of experience that can be demonstrated or proven.

This is a very good question, because the meanings are close but not identical.

• demostrable = demonstrable / provable / capable of being proved
• demostrada = demonstrated / proven

So:

• experiencia demostrable = experience that can be proven
• experiencia demostrada = experience that has been proven/shown

In hiring or application contexts, demostrable is often preferred because it describes a requirement: the experience must be something the applicant can support with evidence.

In Spanish, adjectives usually come after the noun, unlike in English.

So:

• la experiencia demostrable literally follows the normal Spanish pattern:
• the experience demonstrable

This becomes natural English as:

• the demonstrable experience or more naturally in context:
• demonstrable experience

You generally cannot just copy English adjective order into Spanish.

Yes. Spanish adjectives must agree in number, and many also agree in gender.

Here:

• experiencia is singular
• demostrable is singular too

The adjective demostrable has the same form for masculine and feminine singular:

• un mérito demostrable
• una experiencia demostrable

In the plural, it changes:

• experiencias demostrables
• méritos demostrables

So the important agreement you can clearly see here is the singular form.

Yes, it could, and that would still be grammatical. But the nuance changes slightly.

• incluye la experiencia demostrable can sound like it refers to the demonstrable experience as a defined item/category
• incluye experiencia demostrable sounds a bit more general, like it includes demonstrable experience or it asks for/provides for demonstrable experience

Both are possible, but the version with la sounds more specific and formal.

Yes, Spanish word order is more flexible than English, but the neutral, most natural order here is:

• El formulario de candidatura incluye la experiencia demostrable.

Your alternative:

• La experiencia demostrable la incluye el formulario is grammatical, but it sounds marked or emphatic. It puts focus on la experiencia demostrable.

A learner should usually stick to the original order unless there is a special reason to emphasise something.

A broad Spain Spanish pronunciation would be approximately:

el for-mu-LA-rio de can-di-da-TU-ra in-KLU-ye la eks-pe-RYEN-thya de-mos-TRA-ble

A few useful points:

• candidatura is stressed on tu
• incluye has the sound -klu-ye
• in much of Spain, ci in experiencia sounds like thya, not sya
• ll in formulario is just a normal l sound here; the y sound appears in incluye, not in formulario

If you use a Latin American pronunciation instead, experiencia would usually sound more like eks-pe-RYEN-sya.