Tolong ya. Jangan spam!

1. a. Your friend becomes the winner of english speech competition.
- Neutral:
Congratulations for winning the English speech competition
- Formal:
I must congratulate you after your succeeds in winning the English speech competition.
- Informal:
Congratulations! I'm so happy for you!

b. Your teacher gets an award from the regency.
- Neutral:
Congratulations mam/sir
- Formal:
This is a big fortune that has came to you mam/sir. Congratulations. After what you have been through you deserve to have that.
- Informal:
Congrats! mam/sir!

c. Your uncle succeeds in selling his painting for 50 rupiahs.
- Neutral:
Congratulations for your succeeds uncle!
- Formal:
Congratulations for your succeeds in selling your painting uncle. Your hard work is pay off by the succeeds you have today.
- Informal:
Congrats uncle! that sure is a lot of money!