3 sentences

1. 这个人说话很油，不可靠。

   zhè gè rén shuō​huà hěn yóu, bù kě​kào.

   This person talks too slickly; he's not reliable.

   Source: Dong Chinese Dictionary

2. 天气预报一点也不可靠。

   tiān​qì yù​bào yī​diǎn yě bù kě​kào.

   The weather forecast is not reliable at all.

   Source: Tatoeba

3. 她觉得你不可靠。

   tā jué​de nǐ bù kě​kào.

   She doesn't think you're reliable.

   Source: OpenSubtitles