Are you sure?sure是动词还是形容词啊?为什么不是ing形式?

Are you sure?sure是动词还是形容词啊?为什么不是ing形式? 是are you sure 还是do you sure为什么 英语翻译Are you sure? Are you sure? sure .here you are. ARE YOU SURE{?}THAT? are you sure 英语翻译Are you sure? are you sure? really?are you sure? you are sure=are you sure?you are sure 和are you sure的区分或那个是正确的? are you sure they are sure.Here you are这句呢 Are you sure of that Sure.Here you are.怎吗念 are you sure 什么意思 u mean are you sure you are sure have fan