The Subjunctivisor!

Does buscar require the subjunctive?

Buscar may require the subjunctive, depending on whether there is doubt:

Por ejemplo …

Busco un libro que sea interesante.
I am looking for an interesting book.

It may not exist = doubt = subjunctive.

Busco el libro que estoy leyendo.
I am looking for the book I am reading.

It definitely exists = no doubt = no subjunctive.

The Subjunctivisor!  |  Subjunctive lesson