perpetuaban
Imperfect ellos/ellas/ustedes conjugation of perpetuar.

perpetuar

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Los escenarios del reciclaje –con el consiguiente segundo (y largo) ciclo de vida de los componentes– eran diversos: la villa miseria, en donde los desechos se perpetuaban, era moralmente inaceptable.
The recycling scenarios of the consequential second, long-term life cycle of these components were diverse: the slum, where waste is perpetuated, was morally unacceptable.
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