El robo fue el sábado.

Because robo is a noun here, meaning robbery or theft, and in Spanish nouns often use an article like el or la.

So:

• el robo = the robbery / the theft
• robo by itself can still appear in some contexts, but el robo sounds more natural when referring to a specific event.

In this sentence, el robo is the subject: the robbery.

It can mean either, depending on context.

In everyday Spanish:

• robo often corresponds to robbery or theft
• it refers to the act of stealing, or sometimes the stolen incident itself

A learner should know that Spanish does not always divide these words exactly the same way English does. In many contexts, robo is a broad word for stealing-related crime.

Fue is the preterite form of ser for él / ella / usted.

Here, el robo is a singular noun, so the verb is singular:

• el robo fue = the robbery was

The preterite is used because the sentence refers to a completed event in the past.

Spanish uses ser for identifying what something was, and estar for states, conditions, or locations in many cases.

Here, the sentence is basically saying:

• The robbery took place on Saturday
• or literally, The robbery was on Saturday

That is treated as identifying when the event occurred, so ser is used:

• El robo fue el sábado.

Compare:

• La reunión fue el lunes. = The meeting was on Monday.
• La fiesta fue en mi casa. = The party was at my house.

With events, ser is very common.

In Spanish, days of the week often take the definite article.

So:

• el sábado = on Saturday
• literally, it looks like the Saturday

This is very normal in Spanish.

Examples:

• Trabajo el lunes. = I work on Monday.
• La clase es el jueves. = The class is on Thursday.

So in your sentence:

• fue el sábado = it was on Saturday

By itself, el sábado usually means on Saturday. The exact English translation depends on context.

It could refer to:

• Saturday in a general past context
• last Saturday, if the conversation makes that clear

Spanish often leaves that to context instead of marking it explicitly every time.

If you want to be more explicit, you could say:

• el sábado pasado = last Saturday
• este sábado = this Saturday
• el próximo sábado = next Saturday

The normal and most natural order is:

• El robo fue el sábado.

Spanish does allow different word orders more freely than English, but some alternatives sound marked, poetic, or unnatural in everyday speech.

For a learner, the safest version is the original one:

• subject + verb + time expression

You may also hear:

• El sábado fue el robo.

But that sounds more contrastive or stylistically marked, as if emphasizing the day.

A rough pronunciation guide is:

• el RO-bo FWEH el SA-ba-do

A few helpful notes:

• r in robo is a soft tapped r
• fue is one syllable for many speakers, something like fweh
• sábado has the stress on the first syllable: SA-ba-do

Also notice the written accent in sábado, which shows the stress.

Because the stress falls on the first syllable:

• SA-ba-do

Without the accent mark, normal spelling rules would suggest stress elsewhere, so the accent is needed to show the correct pronunciation.

This is one of the standard day names:

• lunes
• martes
• miércoles
• jueves
• viernes
• sábado
• domingo

Yes. That is also correct.

• El robo fue el sábado. = The robbery was on Saturday.
• El robo ocurrió el sábado. = The robbery happened on Saturday.

Ocurrió is a bit more explicitly happened/occurred, while fue is simpler and very natural for talking about when an event took place.

Yes. You can replace sábado with any other day of the week:

• El robo fue el lunes.
• El robo fue el martes.
• El robo fue el domingo.

The pattern is the same:

• El + noun + fue + el + day

So this sentence is a very useful model for talking about when an event happened.