Question

are you sure you don't have me，什么意思

Answer 1

are you sure you don't have me
你确定你没有我吗
sure 英[ʃʊə(r)] 美[ʃʊr]
adj. 确信的，确实的; 有把握的; 无疑的; 一定的;
adv. 当然; 确实地; 无疑地;
[例句]He'd never been in a class before and he was not even sure that he should have been teaching.
他以前从未教过课，甚至不确定自己该不该教课。
[其他] 比较级：surer 最高级：surest

Answer 2

sure接的是形容词的宾语从句，省略了that。
you dont' have me。你没拥有我。
这是一个一般疑问句：
你确定你没拥有我吗？

Answer 3

你真的没有想我吗？