repent one's folly 对自己的愚蠢行为感到后悔(后接名词词组时通常加 of,说成 repent of one's folly;cf. vi. )
I now repent me. 我现在后悔了
It repented me that I did it. 我后悔不该做这事.

repent of one's hasty marriage 后悔仓促结婚
Marry in haste, repent at leisure. 【谚】 结婚匆匆,悔恨无穷.