I apologize most sincerely for…

　　我誠(chéng)摯地對(duì)___________向你道歉。

　　I am truly sorry to have done…

　　我對(duì)________向你表示道歉。

　　Please forgive me…

　　請(qǐng)?jiān)�諒我曾__________。

　　I owe you an apology…

　　我為_(kāi)_____向你道歉。

　　I regret to inform you that I am unable to do..

　　很遺憾地告訴你，我沒(méi)法___________。

　　I am so sorry to have put you through so much trouble…

　　很抱歉給你帶來(lái)這么多麻煩，__________。

　　Invitation

　　The honor of your presence is requested…

　　若你能出席________，我(們)將感到萬(wàn)分榮幸。

　　It’s a pleasure for me to invite you to…

　　我很榮幸地邀請(qǐng)你參加__________。

　　We sincerely hope that you make it.

　　我們真誠(chéng)地希望你能參加。

　　We would be honored to have you there with us…

　　如果您能參加我們的__________，我們將不甚榮幸。

　　I will cover all the expense involved.

　　我將負(fù)擔(dān)所有的費(fèi)用。

　　Sympathy

　　I can only imagine how difficult this time must be for you, and I want to extend to you my unwavering support.

　　我能想象你所經(jīng)歷的一切，而且，我想告訴你，我會(huì)永遠(yuǎn)支持你。

　　Complain

　　I am writing to express my dissatisfaction with\at…

　　我寫(xiě)這封信是想告訴你們我對(duì)________不是很滿(mǎn)意。

　　I very much regret to have to inform you that…

　　很遺憾地通知你，__________。