I congratulate on your birthday.

我祝贺你的生日。

Congratulate on the Success of Website!

热烈祝贺公司新网站开通！

I come here to congratulate on your promotion.

我来这儿是来祝贺您升职的。

Congratulate on your success in the competition.

恭喜你竞赛获得成功。

Steven has been promoted recently. His colleague Peter is coming to congratulate on his promotion.

史蒂文最近升职了，同事皮特前来祝贺。