playing the guitar
El chico que está tocando la guitarra es Ken.
The boy playing the guitar is Ken.
¿Sigue Tom tocando la guitarra?
Does Tom still play the guitar?
Tom estuvo tocando la guitarra durante casi una hora.
Tom played the guitar for almost an hour.
¿Todavía estás tocando la guitarra?
Are you still playing the guitar?
Cuando vine a casa, mi hermana estaba tocando la guitarra.
When I came home, my sister was playing the guitar.