Elegimos el formato y la plataforma.

Elegimos is the first-person plural form of elegir, which means to choose.

So elegimos corresponds to we choose or we chose, depending on context.

• elegir = to choose
• elegimos = we choose / we chose

This form is used with we:
Elegimos el formato y la plataforma. = We choose / We chose the format and the platform.

You usually know from context, because elegimos can be either:

• present tense: we choose
• preterite (simple past): we chose

Spanish has some verb forms that are identical in more than one tense, and this is one of them.

For example:

• Ahora elegimos el formato y la plataforma. = Now we choose the format and the platform.
• Ayer elegimos el formato y la plataforma. = Yesterday we chose the format and the platform.

So the sentence by itself is ambiguous, and that is completely normal.

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

In elegimos, the ending -imos shows that the subject is we.

So both of these are correct:

• Elegimos el formato y la plataforma.
• Nosotros elegimos el formato y la plataforma.

Usually, Spanish prefers the version without nosotros unless you want to add emphasis, contrast, or clarity.

For example:

• Nosotros elegimos el formato, no ellos.
  = We chose the format, not them.

In Spanish, it is very common to use the definite article (the) with nouns where English might sometimes omit it.

Here, both nouns are specific:

• el formato = the format
• la plataforma = the platform

Also, when two nouns have different genders, Spanish normally keeps the correct article with each one:

• el formato
• la plataforma

So el formato y la plataforma is the natural way to say the format and the platform.

Because formato is masculine and plataforma is feminine.

In Spanish, nouns have grammatical gender, and the article must agree with the noun:

• el for masculine singular nouns
• la for feminine singular nouns

So:

• el formato
• la plataforma

The endings help here:

• nouns ending in -o are often masculine
• nouns ending in -a are often feminine

This is a useful pattern, although there are exceptions in Spanish.

Yes, in this sentence both words are very close to their English equivalents.

• formato = format
• plataforma = platform

They are commonly used in areas like media, technology, publishing, education, and online content.

For example, plataforma can mean:

• a digital platform
• a streaming platform
• a learning platform

So the vocabulary here is quite transparent for an English speaker.

Yes. Escoger also means to choose, and in many contexts it is interchangeable with elegir.

So you could also say:

• Escogemos el formato y la plataforma.
• Escogimos el formato y la plataforma.

In everyday Spanish, both verbs are common. Very often, the difference is small or nonexistent in practice.

That said, elegir is extremely common and very natural here.

In standard Spain Spanish, elegimos is pronounced approximately eh-leh-HEE-mos, with the g before i sounding like the Spanish j.

So the middle sound is not a hard English g as in go.

A rough guide:

• e = like eh
• le = leh
• gi = a throaty hee
• mos = mos

So: eh-leh-HEE-mos

Also:

• el formato = el for-MA-to
• y is pronounced like ee
• la plataforma = la pla-ta-FOR-ma

Y is the normal Spanish word for and.

So:

• el formato y la plataforma = the format and the platform

However, y changes to e before words that begin with an i sound, to avoid an awkward repetition of the same sound.

For example:

• padres e hijos = parents and children
• España e Italia = Spain and Italy

But in your sentence, the next word is la plataforma, which does not begin with an i sound, so y stays y.

So el formato y la plataforma is correct.