was barking, used to bark
El perro ladraba como si se entendiera lo que yo había dicho.
The dog barked as if it understood what I had said.
Me ladraba.
It was barking at me.
— Reservoir Dogs (1992)
Él oyó que el perro ladraba.
He heard the dog barking.
El perro ladraba.
The dog was barking.
Era obvio que me ladraba a mí.
It was obvious that he was barking at me.
Había un hombre raro, Jasper le ladraba.
There was a strange man, Jasper was barking at him.
— Rebeca (1940)