Learn Spanish (Latin America): Los bocadillos serían carísimos e increíbles con esa decoración. - The snacks must have been extremely expensive and incredible with that decoration.

In Spanish, the conditional tense is often used to express a guess, probability, or wonder about the past. Even though serían literally means "would be," the speaker is making a strong guess about a past event here, meaning "they must have been" or "they were probably" very expensive.

Why does the sentence use e instead of y for the word "and"?

The Spanish word for "and" changes from y to e when the word right after it starts with an "i" or "hi" sound. Since increíbles starts with an "i," we use e to avoid the two "ee" sounds blurring together.

What does the ending on carísimos mean?

The ending -ísimo is added to adjectives to mean "extremely" or "very, very." Here, it is added to caro (expensive) to make carísimos (extremely expensive). It has to match the masculine plural noun bocadillos, which is why it ends in -os.

Why use the verb ser (serían) instead of estar when describing the snacks?