Foreigners often make some strange mistakes in Chinese when they study the most difficult language--- ---Chinese. We try to analyze typical sentences to correct these errors.

          Wǒ yǒu jǐ zhōnɡɡuó pénɡyou.
False: 我有几中国朋友。
          Wǒ yǒu jǐ ɡè zhōnɡɡuó pénɡyou.
True: 我有几个中国朋友。

几 can be substituted for the numbers from two to nine. It is generally used with a measure word. 个 which can indicate the suit of friends shoudl be added after 几.