English writing practice.
Japanese: 人の心を読むという彼の能力は、嘘ではないかと疑うものが多少いる。
Some people are skeptical about his ability to read people's minds.
A few people are skeptical about his abitliy to read people's minds.
Some people doubt that his ability to read people's minds is not real.
<em>I think the last one is closest to the original.</em>