He de signar el formulari per confirmar la cita.

He de + infinitive is a very common Catalan structure for obligation. It means I have to or I must.

So:

• He de signar = I have to sign

It comes from haver de + infinitive:

• he de — I have to
• has de — you have to
• ha de — he/she has to
• hem de — we have to
• heu de — you all have to
• han de — they have to

No. In this sentence, he is not a pronoun. It is a verb form: the first-person singular of haver.

That means:

• he de signar = I have to sign

English speakers often notice that it looks like English he, but it has a completely different function.

It also appears in other structures, for example:

• he signat = I have signed

So in Catalan, he can be part of a verb phrase, not a subject pronoun.

Because Catalan often leaves out subject pronouns when the verb already shows who the subject is.

Here, he already tells you the subject is I, so jo is unnecessary.

• He de signar el formulari... = normal, natural
• Jo he de signar el formulari... = possible, but more emphatic

You would usually add jo only if you want contrast or emphasis, such as I have to sign it, not you.

Per + infinitive often expresses purpose in Catalan. It means to or in order to.

So:

• per confirmar la cita = to confirm the appointment
• more literally = in order to confirm the appointment

It explains why the form must be signed.

This is a very useful pattern:

• Truco per demanar hora = I’m calling to ask for an appointment
• Estudio per aprendre = I study to learn

Because Catalan nouns normally appear with an article when they refer to something specific.

Here, both nouns are specific:

• el formulari = the form
• la cita = the appointment

The articles also show grammatical gender:

• formulari is masculine → el
• cita is feminine → la

As a learner, it is a good idea to memorize nouns together with their article:

• el formulari
• la cita

In standard Catalan, he de signar is the better choice.

Many learners ask this because Spanish uses tengo que, but in Catalan tenir que is usually avoided in careful or standard language. The normal standard pattern is:

• haver de + infinitive

So:

• He de signar el formulari = standard and natural

Another possible way to express obligation is:

• Cal que signi el formulari = It is necessary for me to sign the form

But for everyday learning, he de signar is the key pattern to remember.

Yes. Signar is a normal and very common verb for to sign, especially with documents.

So these are natural:

• signar un formulari
• signar un contracte
• signar un document

You may also hear firmar in some places, but signar is a safe, standard, widely useful choice.

Cita can mean different things depending on context, most commonly:

• appointment
• date
• sometimes meeting

In this sentence, because it involves a form and confirmation, la cita clearly means the appointment.

So if this were in a medical or administrative context, la cita would be your scheduled appointment.

A good approximate pronunciation is see-NYAR.

A few helpful points:

• the si sounds like see
• gn in signar is pronounced like ny in canyon
• the stress is on the last syllable: sig-NAR

So not sig-nar with a hard g, but more like see-NYAR.

You can also roughly say the whole sentence like this:

• eh de see-NYAR el for-moo-LA-ree per com-feer-MAR la SEE-ta

The exact vowels vary by dialect, but that approximation is good enough to get started.

In this sentence, it most naturally describes the purpose of signing.

So the meaning is:

• I have to sign the form in order to confirm the appointment

In other words, the signing is what helps confirm the appointment.

A learner might wonder whether it means the form for confirming the appointment, but in this full sentence the most natural reading is that per confirmar la cita explains why you must sign the form.