I happened to witness the bullying in the corridor. ✬

Tom was a witness to the accident. ✬

He was the only witness of the accident. ✬

The witness identified the thief in the police lineup. ✬

The policeman protected the witness. ✬

Have you ever been a witness in a court case? ✬

Our only witness is refusing to testify. ✬

Tom is the only witness to the crime. ✬

Tom's lawyer didn't think that the jury would think that Mary was a reliable witness. ✬

Have you ever served as a witness in a court case? ✬