has been decking
Presente perfecto progresivo para el sujeto he/she del verbo deck.

deck

Popularity
500+ learners.
The Texas Senate has been decking the halls and spreading cheer with several holiday activities during the first week of December.
El Senado de Texas ha adornado halls y vestíbulos y se apresta a celebrar varias actividades festivas durante la primera semana de diciembre.
Palabra del día
hervir