• How it works
• Examples

How it works

In Spanish, when we express the idea of liking things, we are not doing the action; we are receiving it from whatever is being liked. This is easier to see if we think of the verb to please:

I like NYC. Subject: I. Object: NYC.

NYC pleases me. Subject: NYC. Object: me.

In Spanish, we follow the second example:

Me gusta NYC. Subject: NYC. Object: Yo.

We don't use the subject pronoun (yo, tú) when using gustar. If we want to use a pronoun, we need to use the personal A in front of it (since the object, the one being pleased, is a person) and thus use the pronouns we use after a preposition. We will say a mí, a ti, a él, a nosotros, a vosotros, or a ellos.

We are also going to use a new set of pronouns (they are very similar to the reflexive pronouns):

(a mí) me gusta / me gustan

(a ti) te gusta / te gustan

(a él / a ella / a usted) le gusta / le gustan

(a nosotros / a nosotras) nos gusta / nos gustan

(a vosotros / a vosotras) (os gusta / os gustan)

(a ellos / a ellas / a ustedes) les gusta / les gustan

Examples

Me gustan las manzanas.* (I like apples.) or (Apples please me.)

Le gusta Laura. (He/she likes Laura.) or (Laura pleases him/her.)

Nos gusta mucho la comida. (We like food a lot.) or (Food pleases us a lot.)

We are not required to use the pronouns a mí, a ti, etc. unless we want to emphasize the person: Me gustan las manzanas. Juan, ¿a ti te gustan las manzanas?

When we use a noun, we must use the preposition a in front of it:

A Pedro le gustan las manzanas. 

A mi hermano no le gusta la pizza.

When we want to say activities we like, we use the infinitive of the verb:

Me gusta cantar. A mi hermano no le gusta trabajar. 

*Important: when using generic/uncountable nouns with gustar we must always use a definite article (el, la, los, las):

Me gusta la piña (I like pineapple). 

Me gustan los gatos (I like cats).