3 sentences

1. 学好英文不难。

   xué hǎo yīng​wén bù​nán.

   Learning English well is not difficult.

   Source: Tatoeba

2. 学荷兰语不难。

   xué hé​lán​yǔ bù​nán.

   It's not difficult to learn Dutch.

   Source: Tatoeba

3. 不难想象伦敦也会发生类似的逆转。

   bù​nán xiǎng xiàng lún​dūn yě huì fā​shēng lèi​sì de nì​zhuǎn.

   It’s not hard to imagine a similar reversal happening in London.

   Source: CCMatrix