Cotejamos el inventario fotográfico.

Cotejamos is the first-person plural form of cotejar.

That means it goes with we.

Depending on context, it can be either:

• present indicative: we cross-check / we compare
• preterite: we cross-checked / we compared

This happens because for many -ar verbs, the nosotros form is the same in the present and the preterite:

• cotejamos = we cross-check or we cross-checked

So you need context to know which one is meant.

Spanish often leaves out subject pronouns because the verb ending already tells you who the subject is.

Here, -amos tells you the subject is we.

So:

• Cotejamos el inventario fotográfico.
• Nosotros cotejamos el inventario fotográfico.

Both are correct, but the version without nosotros is more normal unless you want emphasis or contrast.

For example:

• Nosotros cotejamos el inventario fotográfico, pero ellos no.
  = We cross-check the photographic inventory, but they do not.

Cotejar means something like to compare carefully, to check against, or to cross-check.

It often suggests that you are comparing something in order to verify, match, or confirm details.

Compared with comparar:

• comparar = a general to compare
• cotejar = a more precise to compare/check carefully, often for verification

So cotejar can sound a bit more formal, technical, or administrative than comparar.

Yes, it is a real and normal word in Spain, but it can sound a bit more formal or specialized than everyday verbs like:

• comparar
• revisar
• comprobar

You might hear cotejar in contexts like:

• documents
• records
• inventories
• data
• archives
• police or administrative work

So it is common enough to be understood, but it is not always the most casual choice.

Because cotejar normally takes a direct object.

Here, the thing being checked or cross-checked is el inventario fotográfico, so no preposition is needed:

• Cotejamos el inventario fotográfico.

If you want to mention what it is being checked against, you often use con:

• Cotejamos el inventario fotográfico con los archivos digitales.

So:

• thing being checked = direct object
• reference thing = often introduced with con

El means it is a specific inventory, one that the speaker and listener can identify.

So el inventario fotográfico suggests:

• a known inventory
• a particular inventory already mentioned
• the relevant inventory in that context

If you said un inventario fotográfico, it would sound more like:

• any photographic inventory
• one photographic inventory, not yet identified

In Spanish, adjectives often come after the noun.

So:

• inventario fotográfico = photographic inventory

This is the normal order for a descriptive or classifying adjective.

Also, fotográfico agrees with inventario:

• inventario = masculine singular
• fotográfico = masculine singular

If the noun changed, the adjective would change too:

• inventarios fotográficos = masculine plural
• colección fotográfica = feminine singular

Fotográfico means photographic, but the exact nuance depends on context.

In inventario fotográfico, it usually means an inventory that is:

• based on photographs
• made up of photographic records
• related to photographs as documentation

So it is not just any inventory. It is an inventory connected specifically with photos or photographic evidence/records.

Yes, you could, but the nuance is slightly different.

• inventario fotográfico sounds a bit more technical, official, or set-phrase-like
• inventario de fotos / de fotografías sounds more explicitly like an inventory of photos

So the best choice depends on what you mean:

• if it is an established type of inventory or formal record, inventario fotográfico works very well
• if you simply mean a list/catalogue of photos, inventario de fotografías may sound more transparent

Because the stress falls in a place that does not follow the default stress rules.

Fotográfico is stressed on grá:

• fo-to-grá-fi-co

Without the accent mark, Spanish readers would stress it differently.

By contrast:

• inventario has no written accent because its stress already follows normal spelling rules
• cotejamos also follows the normal rule and does not need an accent mark

So the accent in fotográfico is there to show the correct pronunciation.

A rough pronunciation is:

• co-te-HA-mos in standard Peninsular Spanish spelling terms, because the j is a strong throaty sound

More precisely:

• co as in a short co
• te
• ja with the Spanish j, not the English j
• mos

The stress is on ja:

• co-te-ja-mos

For an English speaker, the key point is that the j in Spanish is not like the English j in job.
It is closer to a harsh h or kh sound.

No, but Cotejamos el inventario fotográfico is the most neutral order.

Spanish is more flexible with word order than English. For example, you could also say:

• Nosotros cotejamos el inventario fotográfico.
• El inventario fotográfico lo cotejamos nosotros.

These versions change the focus or emphasis, not the basic meaning.

The original sentence is natural because it uses:

• omitted subject
• verb first
• direct object after the verb

That is a very common pattern in Spanish.