Explanation: Free verse is a literary device in poetry that doesn't have limitations of regular meter or rhythm, and doesn't rhyme. Free verse is also called "Open format poetry" and even if it doesn't have a regular rhythm, meter or structure and it doesn't rhyme, it stills provides and artistic expression. Many recognized authors often wrote in free verse, like Walt Whitman and T. S. Eliot.
I think that if the sentence was they get paid ( as a verb) every alternate week it would be definitely a passive voice. Do not forget that the passive forms are made up of the verb be with a past participle.<span> </span>