Revisamos la mirilla y la perforación.

Revisamos is the 1st person plural form of revisar, so it means we check / we inspect / we review.

A very important point: revisamos can mean either:

• we check / we are checking (present tense), or
• we checked (preterite/simple past)

The form is the same in both tenses, so you need context to know which one is intended.

Examples:

• Ahora revisamos la mirilla. = Now we’re checking the peephole.
• Ayer revisamos la mirilla. = Yesterday we checked the peephole.

Because in Spanish, some verb forms are identical in the present and the preterite.

For -ar verbs like revisar:

• Present: nosotros revisamos
• Preterite: nosotros revisamos

They look exactly the same. Spanish speakers usually rely on:

• time words like ayer, hoy, ahora
• the surrounding sentences
• the situation itself

So the sentence alone is grammatically ambiguous.

Not usually. This is a very common learner question because revisar looks like revise, but it often means:

• to check
• to inspect
• to examine
• to review

So in many contexts, revisar is a false friend.

For example:

• Revisamos la mirilla = We checked the peephole not usually
• We revised the peephole

In academic contexts, revisar un texto can mean to revise/edit/review a text, but in general everyday Spanish, revisar is often more like check or inspect.

Spanish often repeats the definite article before each noun:

• la mirilla y la perforación

This is more natural than leaving the second article out.

In English, we might say:

• the peephole and the perforation

Spanish usually keeps:

• the + noun + and + the + noun

If you said la mirilla y perforación, it would usually sound incomplete or unnatural here.

Because the sentence is referring to one specific peephole and one specific perforation.

• la mirilla = the peephole
• la perforación = the perforation

If there were several of each, you would use the plural:

• Revisamos las mirillas y las perforaciones.

So the singular tells you the speaker has particular items in mind.

In Spanish, after a verb like revisamos, the things being checked usually come directly after the verb.

So:

• Revisamos = the action
• la mirilla y la perforación = the things being checked

These are the direct objects.

Spanish does not need a word like to or at here. It simply says:

• We checked the peephole and the perforation.

This is the most normal Spanish word order:

• Verb + object

Spanish often allows more flexibility than English, but this version is the most neutral and natural.

Other word orders are possible for emphasis, for example:

• La mirilla y la perforación las revisamos.

That structure sounds more marked or emphatic, something like:

• The peephole and the perforation, we checked them.

So the original sentence is the straightforward default order.

Not literally as a standard imperative form, but in real conversation it sometimes can suggest that idea depending on tone and punctuation.

Strictly speaking:

• Revisamos = we check / we checked
• Revisemos = let’s check

However, in informal speech, people sometimes say:

• ¿Revisamos la mirilla y la perforación?

This can mean:

• Shall we check the peephole and the perforation?

So without context, revisamos is normally just a statement, but in conversation it can sometimes function like a suggestion if used as a question.

Spanish normally uses y for and.

It changes to e only before words that begin with an i sound, such as:

• padre e hijo
• España e Italia

Here the next word is la, not a word starting with an i sound, so it stays:

• la mirilla y la perforación

Both nouns are feminine, which is why they take la.

• la mirilla
• la perforación

How can you tell?

• mirilla ends in -a, which is often feminine
• perforación ends in -ción, and nouns ending in -ción are almost always feminine

That is why the sentence uses:

• la mirilla
• la perforación

not

• el mirilla
• el perforación

The ending -ción is very common in Spanish and usually corresponds to English -tion words.

So:

• perforación ≈ perforation
• inspección ≈ inspection
• revisión ≈ revision/review
• información ≈ information

Two helpful things to remember:

1. -ción nouns are usually feminine
2. They often have a clear English cognate

So la perforación is easy to recognise both in form and gender.

In standard Peninsular Spanish, mirilla is pronounced approximately like:

• mee-REE-ya

The ll sound in most of Spain is pronounced like y in modern standard speech, so:

• mirilla sounds roughly like miriya

Also:

• the stress is on ri: mi-RI-lla
• the i sounds are like ee in see

Perforación is pronounced roughly:

• pehr-fo-ra-THYON in much of Spain

In many parts of Spain, ci before a vowel gives a th sound, so -ción sounds like -thyon. In Latin America, it is usually -syon.

The written accent in perforación shows where the stress goes:

• per-fo-ra-CIÓN

Without the accent mark, the stress rules would make you expect a different pronunciation, so the accent is necessary.

Yes. It is a perfectly normal complete sentence, although by itself it lacks context.

A listener would understand:

• someone is saying that we checked / check the peephole and the perforation

But they may still wonder:

• when this happened
• what kind of peephole
• what kind of perforation
• whether revisamos is present or past

So it is grammatically complete, even if the broader situation is not specified.