I bought a book
I bought a book here yesterday.
I bought a book.
Pasé por la librería y compré un libro interesante.
I went to the bookstore and bought an interesting book.
Yo compré un libro que será muy interesante.
I bought a book that will be very interesting.
Yesterday I bought a book.
Compré un libro de cuentos populares.
I bought a book of folk tales.
Le compré un libro a Tom.
I bought Tom a book.
Compré un libro sobre los animales.
I bought a book about animals.
Sólo compré un libro que se lo dí a un estudiante.
I only bought one book and gave it to a student.