Pe Andrei îl rog să aducă apa la ședință.

In Romanian, pe often marks a direct object when that object is a person or a specific animate being.

So in Pe Andrei îl rog..., Andrei is the person being asked, so Romanian marks him with pe.

A rough breakdown is:

• Pe Andrei = Andrei as the direct object
• îl rog = I ask him

This pe does not mean on here. It is a grammatical marker showing that Andrei is the object of the verb.

Yes, from an English point of view it can look redundant, but in Romanian this is very normal. This is called clitic doubling.

• Pe Andrei names the object explicitly.
• îl repeats that object as a short pronoun.

So:

• Pe Andrei îl rog... literally feels a bit like
• Andrei, him I ask...

In natural Romanian, this doubling is especially common with:

• specific people
• direct objects marked with pe
• objects placed before the verb for emphasis or topic

In this sentence, because Pe Andrei comes first, îl is basically required in standard Romanian.

Because a ruga here takes a direct object, not an indirect object.

• îl = him as a direct object
• îi = to him / him as an indirect object

In this sentence, Andrei is the person directly being asked:

• îl rog pe Andrei = I ask Andrei

So the correct clitic is îl, not îi.

Rog is simply the 1st person singular present form of a ruga:

• a ruga = to ask / to request
• rog = I ask / I request

Romanian verbs often pack the subject into the verb ending, so there is no need to say eu unless you want emphasis.

So:

• rog already means I ask
• eu rog would mean I ask, with extra emphasis on I

Because after a ruga when you say what someone is being asked to do, Romanian normally uses the subjunctive.

So:

• rog să... = I ask that... / I ask someone to...

The subjunctive is formed with să + a special verb form.

For a aduce (to bring):

• indicative: aduce = he/she brings
• subjunctive: să aducă = that he/she bring / to bring

So:

• îl rog să aducă apa = I ask him to bring the water

After rog, să aducă is the normal structure.

The person who is supposed to bring the water is Andrei.

Romanian does not need to repeat him, because it is understood from the structure:

• Pe Andrei îl rog = It is Andrei that I am asking
• să aducă apa = to bring the water

So the subject of aducă is understood as Andrei.

This is very similar to English:

• I ask Andrei to bring the water

English also does not repeat Andrei inside the second verb phrase.

Because apa means the water, while apă means just water in a more general or indefinite sense.

Romanian usually puts the definite article at the end of the noun:

• apă = water
• apa = the water

So apa is:

• noun stem: ap-
• feminine singular ending/article pattern giving apa

In this sentence, the speaker means some specific water, so apa is natural.

Here la ședință means to the meeting or for the meeting, depending on how naturally you would translate it in English.

• la often means to, at, or for, depending on context.
• ședință means meeting, session, or sometimes assembly.

So să aducă apa la ședință means that the water should be brought to the meeting.

Yes. Romanian word order is more flexible than English.

This sentence could also appear as:

• Îl rog pe Andrei să aducă apa la ședință.

That is probably the most neutral word order for many learners.

The version you were given:

• Pe Andrei îl rog să aducă apa la ședință.

puts Andrei first for emphasis, contrast, or topic. It can suggest something like:

• Andrei is the one I’m asking to bring the water
• or As for Andrei, I’m asking him to bring the water

So the fronted object gives the sentence a particular focus.

Yes, usually.

Compare:

• Îl rog pe Andrei să aducă apa la ședință.
  More neutral: I’m asking Andrei to bring the water to the meeting.

• Pe Andrei îl rog să aducă apa la ședință.
  More focused on Andrei: It’s Andrei I’m asking to bring the water to the meeting.

So moving Pe Andrei to the front highlights him.

In standard modern Romanian, with this word order, that would sound wrong or at least very unnatural.

When the direct object is fronted as Pe Andrei, the clitic îl is expected:

• Pe Andrei îl rog... ✅

The clitic helps tie the fronted object to the verb.

Learners should treat this combination as a normal pattern:

• Pe + person + clitic + verb

Functionally, Andrei is the direct object of rog, so it corresponds to the accusative.

Romanian often shows this with:

• pe before a person’s name
• and often a matching clitic like îl

So even though the noun Andrei itself does not visibly change form, the grammar tells you it is the object.

Because it refers to Andrei, who is one person.

The subjunctive form agrees with the understood subject:

• să aducă = that he/she bring

If the person asked were plural, the verb would change accordingly.

For example:

• Pe băieți îi rog să aducă apa...
  Here aducă still looks the same, because Romanian present subjunctive often has the same form for singular and plural in the 3rd person.

So the important thing is that the intended subject is he/she/they, and in this sentence it is Andrei.

Not always. It often means to ask or to request, but the tone can be closer to to ask politely, to request, or even to invite depending on context.

In this sentence:

• îl rog să aducă apa = I ask him to bring the water

That is the most natural translation here.

It is a useful verb to remember because Romanian often uses a ruga where English uses ask someone to...

A helpful way to see it is:

• Pe Andrei = marked direct object
• îl rog = I ask him
• să aducă = to bring / that he bring
• apa = the water
• la ședință = to the meeting

So the full structure is:

[Object/topic] + [object clitic + main verb] + [subjunctive clause]

That pattern is very common in Romanian:

• Îl rog să vină. = I ask him to come.
• Pe Maria o rog să telefoneze. = I ask Maria to call.

This sentence follows that same model.