I confess to Almighty God, to blessed Mary ever Virgin, to blessed Michael the Archangel, to blessed John Baptist, to the holy Apostles Peter and Paul, to all the Saints, and to you, father, that I have sinned exceedingly in thought, word, and deed, through my fault, through my fault, through my most grievous fault. Therefore I beseech blessed Mary ever Virgin, blessed Michael the Archangel, blessed John Baptist, the holy Apostles Peter and Paul, and all the Saints, and you, father, to pray to the Lord our God for me.
℣.May Almighty God have mercy upon you, forgive you your sins, and bring you to life everlasting.℟.Amen.
This is the form said at the beginning of Mass, addressed to the priest ("and to you, father").
Latin
Confiteor Deo omnipotenti, beatae Mariae semper Virgini, beato Michaeli Archangelo, beato Ioanni Baptistae, sanctis Apostolis Petro et Paulo, omnibus Sanctis, et tibi, pater, quia peccavi nimis cogitatione, verbo, et opere, mea culpa, mea culpa, mea maxima culpa. Ideo precor beatam Mariam semper Virginem, beatum Michaelem Archangelum, beatum Ioannem Baptistam, sanctos Apostolos Petrum et Paulum, omnes Sanctos, et te, pater, orare pro me ad Dominum Deum nostrum.
℣.Misereatur vestri omnipotens Deus, et dimissis peccatis vestris, perducat vos ad vitam aeternam.℟.Amen.
Latin from the Complete Manual of Catholic Piety (1844)
From the League Devotions for the Apostleship of Prayer (1895)