2 sentences

1. 我会说世界语和俄语。

   wǒ huì shuō Shì​jiè​yǔ hé é​yǔ.

   I speak Esperanto and Russian.

   Source: Tatoeba

2. 我不会说世界语。

   wǒ bù huì shuō Shì​jiè​yǔ.

   I don't speak Esperanto.

   Source: Tatoeba