Possible Results:
calumniaran
-they/you libelled
Imperfect subjunctive ellos/ellas/ustedes conjugation of calumniar.
calumniarán
-they/you will libel
Future ellos/ellas/ustedes conjugation of calumniar.

calumniar

Muchas veces, lo maldecirán y lo calumniarán.
They will often insult, malign, and calumniate him.
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