Learn Spanish (Latin America): Es importante que tanto el desayuno como la estancia sean incomparables. - It is important that both the breakfast and the stay be incomparable.

The structure tanto [A] como [B] is a correlative conjunction used to give equal weight to two elements. While tanto often means "so much," when paired with como in this way, it translates naturally to "both... and...". It emphasizes that the high standard applies just as much to the breakfast as it does to the stay.

Why is the verb sean in the plural form?

Even though el desayuno and la estancia are individual singular nouns, joining them with tanto... como... creates a plural compound subject. Because two things are being discussed together, the verb must take the third-person plural form, which is sean.

Why do we use the subjunctive sean instead of the indicative son?

The sentence begins with Es importante que... (It is important that...). Impersonal expressions that state an opinion, necessity, or value judgment always trigger the subjunctive mood in the clause that follows. Therefore, the verb ser takes the present subjunctive form sean.

Could I use ambos instead to say "both the breakfast and the stay"?