Revisamos el guardabarros y el espejo retrovisor.

Revisamos comes from the verb revisar, which often means to check, inspect, or look over.

In this sentence, revisamos can mean:

• we checked / we inspected (simple past, also called the preterite)
• we check / we inspect (present, in some contexts)

So by itself, revisamos is ambiguous between present and preterite. Context tells you which one is meant.

Examples:

• Hoy revisamos el auto. = Today we check the car.
• Ayer revisamos el auto. = Yesterday we checked the car.

Because it is the nosotros form of an -ar verb.

The verb is revisar:

• yo reviso
• tú revisas
• él/ella/usted revisa
• nosotros/nosotras revisamos
• ellos/ellas/ustedes revisan

So revisamos means we check / we checked.

This -amos ending is very common for nosotros with -ar verbs:

• hablar → hablamos
• mirar → miramos
• usar → usamos

Spanish often repeats the article before each noun in a list when each noun is being identified separately.

So:

• el guardabarros y el espejo retrovisor

is very natural and clear.

You may sometimes see one article used before multiple nouns, but repeating it is extremely common, especially when the nouns are distinct items:

• Compré la mesa y la silla.
• Limpiamos el motor y el parabrisas.

In this sentence, repeating el sounds normal and natural.

Because each article goes with a singular noun:

• el guardabarros = the fender / mudguard
• el espejo retrovisor = the rearview mirror / side mirror depending on context

There are two separate singular nouns, joined by y (and). Spanish is not saying the items as one plural group with los. It is saying:

• the fender
• and the mirror

If both nouns were plural, then you could use plural articles:

• los guardabarros y los espejos retrovisores

In this sentence, guardabarros is singular.

This word can be confusing because many compound nouns in Spanish do not change form the way learners expect. Guardabarros often has the same form in singular and plural, with the article showing the number:

• el guardabarros = the fender / mudguard
• los guardabarros = the fenders / mudguards

So even though it ends in -s, it can still be singular.

It is a compound noun.

It comes from the idea of guardar (to protect / keep off) + barro (mud). So a guardabarros is something that protects against mud being thrown up by the wheel.

Spanish has several common car-related compound nouns like this:

• parabrisas = windshield
• limpiaparabrisas = windshield wiper
• guardabarros = fender / mudguard

These words are often learned best as complete vocabulary items.

Literally:

• espejo = mirror
• retrovisor = rear-viewing / for looking backward

So espejo retrovisor is literally rear-view mirror.

Depending on context, it may refer to:

• the rearview mirror inside the car, or
• a side-view mirror

In everyday use, context usually makes it clear which mirror is meant.

Because in Spanish, descriptive words often come after the noun.

So:

• espejo retrovisor = literally mirror rear-view
• coche rojo = red car
• puerta trasera = rear door

This is a very common Spanish word order pattern:

• noun + adjective/descriptive term

Yes, in many contexts people do say simply retrovisor, especially when talking about cars.

For example:

• Revisa el retrovisor. = Check the mirror.

But espejo retrovisor is the fuller form and is very clear for learners.

Depending on the country, people may prefer different car-related terms, but retrovisor is widely understood.

Because the sentence is talking about things, not specific people.

The personal a is used mainly before direct objects that are people (and sometimes pets or personified beings):

• Veo a María.
• Visitamos a mi abuelo.

But here the objects are:

• el guardabarros
• el espejo retrovisor

These are objects, so no personal a is used.

Yes. In fact, it usually is omitted unless needed for emphasis or clarity.

Spanish is a pro-drop language, which means the verb ending often already tells you who the subject is.

So:

• Revisamos el guardabarros y el espejo retrovisor.

already means:

• We checked / We check the fender and the mirror.

You could say Nosotros revisamos..., but that would usually add emphasis, contrast, or clarity.

A simple pronunciation guide:

• guardabarros ≈ gwar-dah-BAH-rros
• retrovisor ≈ reh-troh-bee-SOR

A few helpful notes:

• guar- sounds like gwar
• the rr in guardabarros is a rolled or strong r
• v in Spanish usually sounds close to b
• the stress in retrovisor falls on the last syllable: -sor

Not exactly.

• mirar = to look at
• revisar = to check, inspect, examine

So revisamos suggests more than just looking. It implies checking the condition of the parts, possibly to see whether something is wrong.

For a car context, revisar is a very natural choice:

• Revisamos los frenos.
• Revisamos el aceite.
• Revisamos el espejo retrovisor.

Not always. Car vocabulary can vary by region.

For example:

• guardabarros is common, but some places may use other terms depending on the exact part.
• espejo retrovisor is widely understood, though people may also say just retrovisor.

This is normal in Spanish. Even when regional vocabulary varies, the words in this sentence are generally clear and standard enough to be widely understood in Latin America.