Ok so this should be easy?

Question

There is a man that can only lie. What is the one thing he cannot say

Answer 1

the truth  :)

Answer 2

the truth

Answer 3

I am a liar.

Answer 4

The truth

Let us know soon :)

Answer 5

The one thing he can never say is "I always lie"

xo

Answer 6

There are many things he cannot say, such as I am wearing blue today, if he is wearing blue that day. He would be telling the truth. So anything that is the truth, he cannot say. For (another) example, if he had brown eyes, he can say, "I have blue eyes,"  but cannot say, "I have brown eyes." There is probably some "riddlish" answer to this but the logical answer that would make sense in the real life.

Answer 7

I'm a liar.

Answer 8

I always lie

Answer 9

im alive    

i alwase lie

Answer 10

im a liar

Answer 11

there 2 thing im a liar and i m alive

Answer 12

he cannot say that he is lying

Answer 13

am I dead...?

Answer 14

I AM TALKING ,,,,OR I AM LIEING  

Answer 15

I am lying.

Because if he says that, he is saying that he is lying, and since he always lies, he is saying he always tells the truth.  But if he always lies, how can he also always tell the truth?

Great riddle. =)