In the Tridentine Mass form of the Roman Rite, "Kýrie, eléison" is sung or said three times, followed by a threefold "Christe, eléison" and by another threefold "Kýrie, eléison". In the Paul VI Mass form, each invocation is made only once by the celebrating priest, a deacon if present, or else by a cantor, with a single repetition, each time, by the (though the Roman Missal allows for the "Kyrie" to be sung with more than six invocations, thus allowing the traditional use). Even if Mass is celebrated in the vernacular, the "Kyrie" may be in Greek. This prayer occurs directly following the Penitential Rite or is incorporated in that rite as one of the three alternative forms provided in the Roman Missal. The Penitential Rite and "Kyrie" may be replaced by the Rite of Sprinkling.