Translation of "Congratulate" in Chinese

I should congratulate you.

我要恭喜你。

I congratulate you on your engagement.

我为你的订婚祝贺。

I congratulate him, I congratulate Governor Palin for all that they've achieved. And I look forward to working with them to renew this nation's promise in the months ahead.

我向他道賀；也向裴林州長道賀，為他們所成就的一切。我迫不及待想和他們攜手合作，在未來數月更新這個國家的許諾。