Explicamos el porqué en el informe.

Explicamos is the 1st person plural form of explicar in the present tense, so it means we explain.

• explico = I explain
• explicas = you explain
• explica = he/she explains, you formal explain
• explicamos = we explain
• explicáis = you all explain (Spain)
• explican = they explain, you all formal explain

So the sentence is built around we explain.

In Spanish, subject pronouns are often left out because the verb ending already shows who the subject is.

Here, explicamos already tells you the subject is we, so nosotros is unnecessary unless the speaker wants extra emphasis or contrast.

For example:

• Explicamos el porqué en el informe. = We explain the reason in the report.
• Nosotros explicamos el porqué en el informe. = We explain the reason in the report.
  This sounds more emphatic, as if contrasting with someone else.

Here, el porqué is a noun, meaning the reason, the why, or the explanation behind something.

So:

• Explicamos el porqué en el informe. = We explain the reason in the report.

This is different from other similar-looking forms like porque or por qué.

Because in this sentence porqué is being used as a noun.

A very useful rule is:

• el porqué = the reason / the why

As a noun, it usually appears with an article or another determiner:

• el porqué
• un porqué
• su porqué

It has a written accent: porqué.

So in Explicamos el porqué, the article el helps show that this is the noun form.

This is one of the most common confusion points in Spanish.

• porque = because

  • No fui porque estaba cansado. = I didn’t go because I was tired.

• por qué = why / for what reason
  Usually used in direct or indirect questions.

  • ¿Por qué vino? = Why did he come?
  • No sé por qué vino. = I don’t know why he came.

• porqué = reason / motive (noun)
  Usually with an article or determiner.

  • No entiendo el porqué. = I don’t understand the reason.

• por que = less common combination of por

  • que
    It appears in specific structures, for example with verbs or expressions that require por.
  • Luchan por que todo mejore. = They fight so that everything improves.
  • Esta es la razón por que lo hice. = This is the reason for which I did it.
    In many everyday cases, learners mostly need to master the first three.

In your sentence, the correct form is el porqué because it means the reason.

Not with the same meaning.

• Explicamos el porqué en el informe. = We explain the reason in the report.
• Explicamos por qué... would usually need more information after it, because por qué introduces an indirect question:
  • Explicamos por qué ocurrió. = We explain why it happened.
  • Explicamos por qué tomamos esa decisión. = We explain why we made that decision.

So:

• el porqué = a noun phrase
• por qué = why, introducing a clause

In Spanish, en often covers both English in and on, depending on context.

Here, en el informe is best translated as:

• in the report

because the idea is that the explanation appears within the contents of the report.

Spanish uses en very broadly, so you should not expect a perfect one-to-one match with English prepositions.

Spanish uses articles more often than English does. In this sentence, el informe means the report, referring to a specific report that speaker and listener can identify.

Compare:

• en el informe = in the report
• en un informe = in a report

Leaving out the article here would sound unnatural in standard Spanish.

Yes. Explicamos is grammatically present tense: we explain.

But in Spanish, the present tense can sometimes refer to a planned future action depending on context. For example:

• Mañana explicamos el porqué en el informe. = Tomorrow we explain the reason in the report.

Without extra context, though, the basic reading is simply present: we explain.

Yes, Spanish word order is fairly flexible, though some versions sound more natural than others depending on emphasis.

The neutral order is:

• Explicamos el porqué en el informe.

You could also say:

• En el informe explicamos el porqué.

This version emphasizes where the explanation appears: In the report, we explain the reason.

Both are correct. The choice depends on what you want to highlight.

Yes, but it is a little more formal or abstract than some simpler alternatives.

Common possibilities include:

• el porqué = the reason / the why
• la razón = the reason
• el motivo = the motive / reason

For many everyday contexts, speakers might more naturally say:

• Explicamos la razón en el informe.
• Explicamos el motivo en el informe.

But el porqué is perfectly correct and very useful to recognize, especially in written Spanish.