2 sentences

1. 我们检查了楼顶。

   wǒ​men jiǎn​chá le lóu​dǐng.

   We checked the roof.

   Source: OpenSubtitles

2. 楼顶已经不在。

   lóu​dǐng yǐ​jing bù​zài.

   The roof is no longer there.

   Source: CCMatrix