The key Catholic prayers are either part of the Mass, during which many prayers are sung, or part of praying the rosary.
Traditionally, Catholic prayers fall into four types:
Adoration: Praising God
Contrition: Asking for God’s forgiveness
Petition: Asking God for a favor
Thanksgiving: Showing God gratitude
I believe in one God, the Father almighty, maker of heaven and earth, of all things visible and invisible. I believe in one Lord Jesus Christ, the Only Begotten Son of God, born of the Father before all ages. God from God, Light from Light, true God from true God, begotten, not made, consubstantial with the Father; through him all things were made. For us men and for our salvation, he came down from heaven, and by the Holy Spirit was incarnate of the Virgin Mary, and became man. For our sake he was crucified under Pontius Pilate, he suffered death and was buried, and rose again on the third day in accordance with the Scriptures. He ascended into heaven and is seated at the right hand of the Father. He will come again in glory to judge the living and the dead, and his kingdom will have no end. I believe in the Holy Spirit, the Lord, the giver of life, who proceeds from the Father and the Son, who with the Father and the Son is adored and glorified, who has spoken through the Prophets. I believe in one, holy, catholic and apostolic Church. I confess one baptism for the forgiveness of sins, and I look forward to the resurrection of the dead, and the life of the world to come.
Amen.
I believe in God, the Father almighty, creator of Heaven and Earth.
I believe in Jesus Christ, His only Son, our Lord.
He was conceived by the power of the Holy Spirit and born of the Virgin Mary.
He suffered under Pontius Pilate, was crucified, died and was buried.
He descended to the dead. On the third day He rose again.
He ascended into Heaven and is seated at the right hand of the Father.
He will come again to judge the living and the dead.
I believe in the Holy Spirit, the Holy Catholic Church, the communion of saints, the forgiveness of sins, the resurrection of the body, and life everlasting.
Amen.
Our Father, who art in Heaven; hallowed be Thy Name; Thy kingdom come; Thy will be done, on Earth as it is in Heaven. Give us this day our daily bread and forgive us our trespasses, as we forgive those who trespass against us; and lead us not into temptation but deliver us from evil.
Amen.
Hail Mary, full of grace, the Lord is with thee. Blessed art thou among women and blessed is the fruit of thy womb, Jesus. Holy Mary, Mother of God, pray for us sinners, now and at the hour of our death.
Amen.
Glory be to the Father and to the Son and to the Holy Spirit. As it was in the beginning, is now and ever shall be, world without end.
Amen.
Oh my Jesus, forgive us our sins, save us from the fires of hell. Lead all souls to Heaven, especially those in most need of Thy mercy.
St Michael the Archangel, defend us in battle; be our defense against the wickedness and snares of the Devil. May God rebuke him, we humbly pray and do thou, O prince of the heavenly host, by the power of God, thrust into Hell Satan and all the other evil spirits who prowl about the world seeking the ruin of souls.
Amen.
O my God, I am heartily sorry for having offended You. I detest all my sins because of your just punishments, but most of all because they offend you, My God, who are all good and worthy of all my love. I firmly resolve, with the help of Your grace, to sin no more and to avoid the near occasions of sin. Amen.