"I hope you will do me the justice to believe that I sincerely regret what has happened."
We do not sign this text and sincerely regret it.
By this time, he sincerely regretted the impulse that had brought him here.
I sincerely regret it now, and shall tell her at once, so you may save yourself the trouble.
Not for the first time, she sincerely regretted her masquerade.
"I sincerely regret putting you in such danger," the Count said.
Strange under the circumstances, but she thought he sincerely regretted hurting her.
I sincerely regret this-I did not set out to harm anyone.
I sincerely regret this situation and we will protest in the strongest terms to the company concerned.
The boy had been an accident, a tragic one, and one he sincerely regretted.