masticating russian

• пережёвывающий

  chewing, ruminating, masticating

• прожёвывающий

  chewing, masticating

• прожёвывавший

  chewing (thoroughly), masticating (referring to something that was doing the action)

• разжёвывающий

  chewing, masticating

  explaining in detail, elucidating, clarifying

• пережёвывавший

  chewing, masticating, that was chewing

  ruminating on, rehashing, mulling over, that was pondering