v.后悔；惋惜；為 ... 感到遺憾（動詞regret的過去式和過去分詞）

She regretted her impetuous decision. 她后悔自己做了沖動的決定。

I regret having to make so many staff redundant. 我很遺憾不得不裁減這么多職員。

I regret not completing the inventory on time. 我很遺憾沒有按時填好庫存單。

He later regretted his impulsive decision. 後來他懊悔憑沖動作出的決定。

He regretted very much having said something gross. 他講了一些粗話,對此非常後悔。