stunned

I was stunning by the news.→I was stunned by the news.

混淆了 -ed 和 -ing 形容词：-ed 描述感受（震惊的），-ing 描述引起感受的（令人震惊的）。

He stunned when he heard the news.→He was stunned when he heard the news.

将 stun 误用作不及物动词；stun 是及物动词，表示“使震惊”，因此应用被动语态或形容词形式 stunned。