I used to like them
Me gustaban antes de ser populares.
I liked them before they were popular.
No puedo recordar qué dulces me gustaban de pequeño.
I can't remember which sweets I liked as a child.
I liked them.
Me gustaban las historias del capitán salvando las vidas de pilotos enemigos.
I liked the stories of the captain saving the lives of enemy pilots.
— Porco Rosso (1992)
Él me preguntó si me gustaban las matemáticas.
He asked me if I liked mathematics.
I liked them all.
Ya me gustaban antes de que se hicieran populares.
I liked them before they became popular.