penetraron

Penetraron is the third-person plural preterite indicative form of the Spanish verb penetrar, meaning they penetrated or they infiltrated. It is used to describe finished actions in the past carried out by a group. The verb penetrar comes from Latin penetrare, formed from penetrare, with the sense of going through or entering something. In Spanish, penetrar is a regular -ar verb, so its preterite endings are: yo penetré, tú penetraste, él penetró, nosotros penetramos, vosotros penetrasteis, ellos penetraron.

Penetraron appears in narrative and reporting contexts to denote entry or successful crossing of a boundary, whether physical, spatial, or metaphorical. Common uses include describing military or police entries, attempts to access spaces, or entering a field of study. It can be used in both literal and figurative senses.

Examples: Los soldados penetraron en la ciudad al amanecer. La niebla penetró la habitación y la volvió casi imposible de atravesar. Los analistas penetraron las causas del fallo con una revisión detallada.

In summary, penetraron is a standard past-tense form used for plural subjects in Spanish, versatile across domains from fiction to journalism.