- Informal : Congrats! I'm so happy for you, you deserve it. How cool ! Way to go! Great work, darling! Kudos! I'm so proud of you.
- Marriage: “I wish you both all the happiness in the world!” “Congratulations to the perfect couple!” “Best wishes for your marriage” “Sincere congratulations on your marriage” “May your new life together bring you the joy you deserve” “I write to send you my very best wishes for your future together.”
- Newborn: “Congratulations on the birth of your baby boy or baby girl!” “Congratulations on the arrival of the newest member of the family!” “Best wishes for you and your beautiful baby!” “I wish you a lot of happiness with your little one!”
- Driving test: “Congratulations on passing your driving test! Good job!”
- Graduation: “Happy graduation! Wishing you luck and success in all that you do!” “You did it! Congratulations, graduate. Wishing you the best things in your future to come.” “Congratulations, you've got a bright future in front of you!”
- Promotion: “I want to congratulate you on your new position, I couldn't imagine a more deserving person to be chosen.” “I was very pleased to learn about your outstanding achievement” “Hard work, knowledge, experience and perseverence pay off and you have proved it!” “I know you're the right person for this job, you can count on my full support.”
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BREAK A LEG (idiom) : good luck for your performance!