我為______向你道歉。

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

　　很遺憾地告訴你，我沒法___________。

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

　　很抱歉給你帶來這么多麻煩，__________。

　　Invitation

　　The honor of your presence is requested…

　　若你能出席________，我(們)將感到萬分榮幸。

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

　　我很榮幸地邀請你參加__________。

　　We sincerely hope that you make it.

　　我們真誠地希望你能參加。

　　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.

　　我將負擔所有的費用。

　　Sympathy

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

　　我能想象你所經歷的一切，而且，我想告訴你，我會永遠支持你。

　　Complain

　　I am writing to express my dissatisfaction with\at…

　　我寫這封信是想告訴你們我對________不是很滿意。

　　I very much regret to have to inform you that…

　　很遺憾地通知你，__________。

　　I would like to draw the attention of the authorities concerned to the …