<em>Ellas nunca </em><em>jugaban</em><em> con animales de peluche.</em>
jugaban is the right conjugation of the <em>ar </em>verb jugar for the third-person plural in the imperfect tense. The imperfect is used to talk about past actions, conditions, or events that occurred regularly or frequently or that were in progress in a moment in the past. To conjugate a verb in the imperfect, take away the <em>ar </em>ending and add the new ending according to the subject of the sentence. For the third-person singular, the ending is aban.