- A ti te gusta estudiar.
- A ellos les encantan los mariscos.
- A nosotros nos interesa los anuncios.
The indirect object replaces the one who receives the verb. It can be replaced, if it is in the third person, "le" (singular) or "les" (plural); they can also be replaced by unstressed pronouns (me, se, te, nos, os).
MissSpanish