How to Use "liar" with Example Sentences

1. But when a liar confesses , can you believe him ?
2. If you get found out you look not only a liar but a worthless worm .
3. Even detectives and psychologists can spot a liar only about 47 percent of the time .
4. He is not saying that any agency has actually sunk that low , but it raises a tricky moral question : is it all right to detect a liar with a lie ?
5. After all , if we assume the person we 're arguing with is lying , the only thing they can prove to us is that they 're a really good liar .