Below list of sins to recall to help us with our next perfect Confession. List taken from the 2011 Hand Book of Prayers compiled by The Sisters of Mary School, aka World Villages for Children.
☐ I have performed my duties towards God reluctantly or grudgingly.
☐ I did not recite my daily prayers with faith and devotion.
☐ I received the Holy Communion in the state of mortal sin.
☐ I deliberately told a lie in confession or intentionally failed to mention a mortal sin during my previous confession.
☐ I seriously believed in superstition or engaged in superstitious practices.
☐ I seriously doubted the matters of faith.
☐ I did not make an effort to study my religion.
☐ I put my faith in danger by reading something contrary to Catholic faith and morals.
☐ I put my faith in danger by joining activities contrary to the Church (protestant services, non-Catholic prayer meetings, communist party, freemasonry, “weird cults”).
☐ I have used God’s name in vain.
☐ I have used the name of Mary or a saint in an irreverent manner.
☐ I have been angry with God.
☐ I have wished evil upon a person.
☐ I have insulted a sacred person.
☐ I have abused a sacred object.
☐ I have been a sponsor in baptism and ceremonies outside the Catholic Church.
☐ I broke a private or public vow (esp. for religious).
☐ I did not try to fulfill a promise and resolutions I made to God.
☐ I deliberately missed Mass on Sundays or Holy Days of obligation.
☐ I did not make an effort to arrive early at Mass.
☐ I allowed myself to be distracted during Mass but not paying attention, thinking of something else, etc.
☐ I misbehaved during mass and distracted others by my attire or posture.
☐ I did not generously help the Church or the poor to the extent that I am able.
☐ I did not fast and abstain on days prescribed by the Church.
☐ I did or commanded service work on Sundays.
☐ I have broken the one-hour Eucharistic fast.
☐ I have neglected to teach my children their prayers (for parents).
☐ I have neglected to send my children to Church (for parents).
☐I have neglected to give my children Christian education (for parents).
☐ I have not given my family good religious example (for parents).
☐ I neglected to watch over my children: reading materials, movies, and their companions (for parents).
☐ I have not seen to it that my children receive the Sacraments especially Baptism, Confirmation, and First Communion (for parents).
☐ I have been disrespectful towards my parents, elders, and superiors (for children).
☐ I have neglected my parents of their needs (for children).
☐ I felt hurt and reacted proudly when I was corrected by my parents (for children).
☐ I have not done well my duties at home, in school, in church (for children).
☐ I have not been cooperative with my family activities and prayers (for children).
☐ I have quarreled with my sibling/s (for children).
☐ I got very angry and lost my temper that caused harm.
☐ I was envious or jealous of others.
☐ I harmed or took the life of someone.
☐ I was careless in my driving.
☐ I gave scandal to someone due to my dirty jokes, immodesty, etc. thereby leading them to sin of…
☐ I neglected my health by…
☐ I attempted to take my own life.
☐ I have had an abortion (for women) or encouraged someone to do it (men and women).
☐ I got drunk and harmed someone.
☐ I took prohibited drugs.
☐ I have kept anger in my heart and desired revenge.
☐ I did not ask pardon to someone I have offended.
☐ I caused harm to someone with my words and/or actions.
☐ I did not accept a sincere apology from someone.
☐ I have entertained indecent thoughts, feelings, or impure conversations.
☐ I have been guilty of impure acts with myself (masturbation) or with others (pre-marital and extra-marital acts).
☐ I have been guilty of homosexual acts.
☐ I consented to evil desires against the virtue of purity by an affinity with a married person or a consecrated person.
☐ I had a hand in contributing to the contraceptive atmosphere by my advice, jokes, attitudes, etc.
☐ I intentionally put myself in proximate occasions of sin though immoral movies or shows, concerts, comedies, dances, readings, bad company, staying in houses of ill-repute.
☐ I intentionally put myself in proximate occasions of sin by sharing a room with a person of opposite sex, or being alone with a person of opposite sex in dark places.
☐ I have friends who cause me habitual occasions of sin and I am not prepared to break off with them.
☐ I allow lust as a reason of courting instead of true love (for single lay men).
☐ I have not been faithful to my marriage vows in thought and action (for married people).
☐ I have engaged in sexual activity outside marriage (for married people).
☐ I have used method/s of contraception or artificial birth control in my marriage (for married people).
☐ I stole an object or an amount of money that I have not returned or made restitution for what I have stolen.
☐ I caused damage to other’s property.
☐ I harmed someone by deception, scam, fraud, or coercion in transactions.
☐ I wasted time at work, school, or at home.
☐ I gave in to laziness or the love of comfort and luxuries.
☐ I did not work diligently and cheated on time.
☐ I gambled and denied my family of their needs.
☐ I did not pay my debts or did not returned what I borrowed promptly.
☐ I have been greedy, selfish and jealous of what others had.
☐ I told lies.
☐ I harmed the good name or reputation of someone by talking ill about them.
☐ I told secrets about myself and others without due cause.
☐ I have been critical, negative, or uncharitable in my thoughts of others.
☐ I engaged myself in gossiping or back-bitting.
☐ I have unjustly accused others.
Note that in each of the lines, you need to add the number of times you have committed such sin if applicable. Some entries might need further description (example: I have been angry with God because…..).