regret的用法与搭配：regret可作名词和动词，作名词时，含义为痛惜、遗憾，作动词时，含义有感到惋惜、懊悔等；后面可接名词或代词，还可接that从句、不定式或动名词形式。

regret的基本含义及用法介绍
1、当regret作为动词时，含义有感到遗憾;惋惜;懊悔;有礼貌地或正式地表示抱歉、痛惜或悲伤。
例句：If you don't do it now, you'll only regret it .
你如果现在不做，以后一定会后悔的。
The decision could be one he lives to regret .
这一决定也许会有让他后悔的一日。
The airline regrets any inconvenience.
航空公司对所造成的任何不便表示歉意。
We regret to inform you that your application has not been successful.
我们很遗憾地通知您，您的申请未通过。
I simply gave in to him, and I've regretted it ever since...
我就向他屈服了，从那以后我一直后悔。
2、当regret作为名词时，含义有痛惜;懊悔;遗憾;失望。
例句：It is with great regret that I accept your resignation.
接受你的辞呈，我感到非常遗憾。
She expressed her regret at the decision.
她对这个决定表示失望。
He gave up teaching in 2001, much to the regret of his students.
他于2001年放弃了教学，这使他的学生深感遗憾。
He expressed great regret and said that surgeons would attempt to reverse the operation...
他深表歉意，说外科医生会努力消除手术造成的损伤。
