I am ashamed of my behaviour.
He is ashamed of his folly.
I felt genuinely ashamed now at losing control like that and yelling at her.
He was ashamed of his conduct.
Do not be ashamed to admit your mistakes.
Aren’t you ashamed of yourself?
He was ashamed of his humiliating defeat.
He felt ashamed of having made a fool of himself in front of all his friends.
He is ashamed of his conduct.
I am very ashamed about the incident.
Why are you feeling ashamed of it?
You must be feeling ashamed of your foolishness.
Why should I feel ashamed of it?
You should be ashamed by making such remarks.
You should be ashamed of yourself.