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|past participle||proved or proven|
You have to prove you are sorry for what you’ve done.
She was determined to prove to her parents that she could live on her own.
For ten years he has been fighting to prove his innocence.
Recent excellent results have proved their critics wrong.
My decision proved to be a good one.
The film is proving very profitable.
His injuries proved fatal (=he died of them).
This is the British English definition of prove. View American English definition of prove.