In my country, you begin to regret, to feel guilty for being black.
He was already beginning to regret allowing her to help him deal with this business.
He began to regret his decision to get out of town.
I was beginning to regret even getting into the argument.
I was beginning to regret my decision to come with him.
Now he was really beginning to regret his decision to leave.
"I am beginning to regret doing what you told me."
He began to regret having to give up the case.
He began to regret his clothing choice of the morning.
I was beginning to really regret my choice of clothes.