一些關於英文文法的問題..

I do not completely understand how this question relates English grammar.
If you need a direct translation, it would be "Did you lie to me?"
I use past tense to ask this question because you must have suspected the other person LIED to you some time in the PAST or you would not ask if he lied to you.

Are you lying?

Whether you do lie to me?

如果要問，"你是否對我說謊?"
那該怎樣說??

就係↓
Whether you do lie to me

不如我比個網址你!↓
http://www.worldlingo.com/zh_tw/microsoft/computer_translation.html

Are you lying to me?

Whether you do lie to me?