不敢相信用英文怎么说

"不敢相信"用英语可以说成"can't bepeve"或"unbepevable"。

"Can't bepeve"是由动词"can"和否定形式"not"组成的短语，意思是"不能相信"。"Unbepevable"是形容词，意思是"难以相信的"。

例句:

I can't bepeve he won the lottery. (我不敢相信他中了彩票)
It's unbepevable how much she has achieved. (她取得的成就令人难以相信)