我觉得你好厉害英语怎么说

"I think you're very good" 或 "I think you're very skilled" 可以用来表达对某人能力的赞扬。其中"very good" 是形容词，表示"非常好"；"very skilled" 是形容词短语，表示"非常熟练"。
例句：
I think you're very good at playing the guitar. 我认为你弹吉他非常棒。
I think you're very skilled at programming. 我认为你的编程能力非常强。