Ya he revisado la documentación y el justificante del pago.

Ya often means already.

In this sentence, it tells you that the action has been completed by now:

• Ya he revisado... = I have already checked/reviewed...

It can also add a slight sense of “that part is done now”.

He revisado is the present perfect: haber + past participle.

• he = I have
• revisado = reviewed/checked

In Spain, the present perfect is very commonly used for actions connected to the present moment or a recent time period:

• Ya he revisado... = I’ve already reviewed...

By contrast, revisé is the preterite (I reviewed / I checked) and is more likely to be used for a finished action placed clearly in the past.

This is especially worth noticing because in much of Latin America, speakers often use the preterite more often where Spain Spanish might prefer the present perfect.

Because Spanish forms the present perfect with haber, not with ser or estar.

So:

• he revisado = I have reviewed
• not soy revisado
• not estoy revisado

English uses have in the same way: I have reviewed.

Revisado is the past participle of revisar.

Here, revisar means something like:

• to review
• to check
• to examine

So he revisado could be understood as:

• I have reviewed
• I have checked

The best translation depends on context. With documents, reviewed or checked are both natural.

Because when a past participle is used with haber in a compound tense, it does not agree with the noun.

So you always get:

• he revisado
• has revisado
• hemos revisado

not forms like revisada or revisados in this structure.

Agreement only happens in other situations, such as when the participle is used more like an adjective:

• La documentación está revisada. = The documentation is reviewed / has been checked.

But in he revisado, it stays revisado.

Spanish often uses the definite article more than English does.

Here, la documentación refers to the documentation / the documents relevant in the situation.

Even when English might sometimes omit the, Spanish often keeps it:

• He revisado la documentación = I’ve reviewed the documentation

This sounds natural and complete in Spanish.

Documentación is grammatically singular, even though it can refer to a set of documents.

So:

• la documentación
• not las documentaciones in this context

It often means:

• documentation
• paperwork
• documents, depending on context

This is similar to English words like paperwork, which are singular in form but refer to multiple papers.

Justificante is a very common Spanish word for a proof, receipt, or supporting document showing that something has been done.

So el justificante del pago means:

• the proof of payment
• the payment receipt
• the payment confirmation

The exact English wording depends on the situation, but the idea is a document that proves the payment was made.

Because de + el contracts to del.

So:

• de + el = del

That gives:

• el justificante del pago

This is a mandatory contraction in normal Spanish.

Compare:

• la documentación del curso = the course documentation
• el nombre del hotel = the name of the hotel

But this only happens with el, not with la:

• de la empresa
• not dela empresa

This is normal in Spanish, just as in English.

• la documentación y el justificante del pago

It connects the two things that were reviewed:

1. la documentación
2. el justificante del pago

You do not need to repeat he revisado before the second noun, because it naturally applies to both.

Yes. Each noun has its own article because they are two separate noun phrases:

• la documentación
• el justificante del pago

You cannot use one article for both because the nouns have different genders:

• documentación is feminine → la
• justificante is masculine → el

So the structure must be:

• la documentación y el justificante del pago

In Spain, Ya he revisado... sounds very natural for something completed recently or relevant now.

In many parts of Latin America, people might more often say:

• Ya revisé la documentación y el justificante del pago.

Both are correct Spanish, but for Spain Spanish, the original sentence is especially natural.

Yes, depending on context. Possible alternatives include:

• recibo = receipt
• comprobante = proof/receipt
• resguardo = receipt/slip
• confirmación de pago = payment confirmation

But in Spain, justificante de pago is very common and natural, especially in formal or administrative contexts.

A simple breakdown is:

• Ya = already
• he revisado = I have reviewed / checked
• la documentación = the documentation
• y = and
• el justificante del pago = the proof/receipt of payment

So the grammar pattern is:

time/aspect word + auxiliary verb + past participle + direct objects

More abstractly:

Ya + he + revisado + [object 1] + y + [object 2]