Kérem, írja rá a címet a borítékra, és itt alá is írhatja!

It is formal/polite.

You can tell from forms like írja and írhatja, which go with the implied pronoun Ön (you, formal). In Hungarian, polite you uses third-person verb forms, not second-person ones.

So this is the kind of thing you might hear from a clerk, receptionist, or official:

• Írja...
• Aláírhatja...

An informal version to one person would look different, for example:

• Kérlek, írd rá...
• ...és itt alá is írhatod.

Here Kérem means please.

Literally, kérem comes from kér (to ask/request) and originally means something like I ask or I request, but in everyday Hungarian it is very commonly used as a polite please.

So:

• Kérem, írja rá... = Please write...

Depending on context, kérem can also mean other things, such as I beg your pardon? or here you are, but in this sentence it is simply a polite opener.

Because írja is the formal command form.

Compare:

• írj = write! said to one person informally
• írja = write! said politely/formally to Ön

So in this sentence, írja is the appropriate command form for formal address.

A useful way to think about it:

• informal: te → írj
• formal: Ön → írja

The -ja ending here is connected to the definite conjugation.

Hungarian verbs often change depending on whether the object is:

• indefinite or general
• definite and specific

In the first clause, the object is clearly definite:

• a címet = the address

So Hungarian uses the definite form:

• írja = write it / write the specific thing

In the second clause:

• alá is írhatja

the verb still has a definite ending because the object is understood from context, even though it is not stated explicitly. In English we often omit it too:

• You can sign here. Hungarian often understands something like it or the document/form.

A címet is the direct object of the verb.

Breakdown:

• a = the
• cím = address (or title, depending on context)
• címet = the address in the accusative case

The -t marks the direct object:

• cím = address
• címet = address + object marker

So:

• írja a címet = write the address

Because -ra/-re means onto or onto the surface of something.

Breakdown:

• boríték = envelope
• borítékra = onto the envelope

Hungarian uses this because writing an address is understood as putting something onto a surface.

So:

• a borítékra = onto the envelope

This is different from a static location:

• a borítékon = on the envelope

Here the action results in the writing ending up on the envelope, so -ra is natural.

Rá is a verbal prefix meaning something like onto it / on it.

With ír, it forms:

• ráír = write onto / write on

So the sentence contains both:

• rá = the verbal prefix
• a borítékra = the explicit target, onto the envelope

This can feel repetitive to English speakers, but it is very normal in Hungarian. The prefix and the noun phrase often work together.

So:

• írja rá a címet a borítékra
  means literally something like
• write the address onto it, onto the envelope

In natural English, of course, we usually just say:

• write the address on the envelope

Because in commands/imperatives, Hungarian verbal prefixes often move after the verb.

So:

• neutral statement: Ráírja a címet a borítékra. = You write the address on the envelope.
• command: Írja rá a címet a borítékra! = Write the address on the envelope!

This happens with many prefixed verbs:

• tegye le = put it down
• kapcsolja be = switch it on
• írja rá = write it on

So the position of rá is a grammar pattern, not a special meaning change.

It comes from the verb aláír, which means to sign.

Literally:

• alá = under / below
• ír = write

Historically, the idea is write underneath, which became the normal Hungarian verb for sign.

So:

• aláír = sign
• aláírhatja = you can/may sign it

In this sentence, the verb is split:

• alá is írhatja

That still comes from aláír, but with is inserted.

The part -hat/-het expresses possibility, permission, or ability:

• can
• may

So:

• írhatja = you can write it / you may write it
• in this context, with alá: alá írhatja / aláírhatja = you can sign it

Here it sounds polite and practical, like:

• you may sign here
• you can sign here as well

Is usually means also or too.

So:

• alá is írhatja = you can also sign it or
• you can sign here too / as well

In English, also/too often goes later in the sentence, but Hungarian is attaches to the word or part being highlighted.

That is why you see:

• alá is írhatja

rather than a direct word-for-word match to English.

The basic verb is one unit:

• aláír = sign

A neutral form would often be:

• aláírhatja = you can sign it

But Hungarian can separate the verbal prefix from the verb, especially when another element such as is is inserted for emphasis or nuance:

• alá is írhatja

So this does not mean a different verb; it is still aláír. The sentence just separates the parts.

Because Hungarian very often leaves out things that are already clear from the verb form or the situation.

1. The subject is omitted
   • írja
   • írhatja

Both already tell you this is formal you.

2. The object can be omitted In alá is írhatja, the thing being signed is understood from context: the form, the document, the envelope section, the signature line, etc.

This is extremely common in Hungarian. If the listener can easily identify the subject or object, it often does not need to be said explicitly.

Itt means here.

It tells the person the place where the signing should happen:

• és itt alá is írhatja = and you can sign here too / and you can sign here as well

In a real-life situation, someone might say this while pointing at a line, box, or space on a form or envelope.