This is the 3314th most frequent Spanish word.
comentado
"Comentado" means "commented on" or "discussed."
Here, 'comentado' serves a role in the pluperfect tense to denote an action completed in the past relative to another past event.
El tema que mencionaste había sido comentado antes.
The topic you mentioned had been commented on previously.
In this case, 'comentado' is used as a past participle functioning adjectivally to describe the article as one that had been commented on.
El artículo comentado por los estudiantes fue interesante.
The article commented on by the students was interesting.
The word 'comentado' is used as the past participle of the verb 'comentar', indicating an action completed regarding the project.