Learn Spanish (Spain): ¿Os gustan las monedas viejas?

In Spanish, the verb gustar works differently than the English verb 'to like'. It actually means 'to be pleasing to'. Because the things that are pleasing here are the old coins (las monedas viejas), which is plural, the verb must be in the plural form gustan. If it were just one coin, you would use gusta.

Who exactly is os referring to?

Os means 'to you all' in an informal way. In Spain, when speaking to a group of people you are familiar with, you use the group 'you' called vosotros. Os is the matching pronoun used with gustar to show who is feeling pleased.

Why does viejas end in '-as'?

Adjectives in Spanish must match the noun they describe in both gender (masculine or feminine) and number (singular or plural). The word for coins, monedas, is feminine and plural, so the base adjective viejo changes to its feminine plural form, viejas.

Why is the word las included if the English translation doesn't say 'the'?

In English, we usually skip the word 'the' when talking about things we like in general. However, in Spanish, when you use gustar with nouns, you always need to include the definite article (el, la, los, or las).