2 sentences for 要命 (yào​mìng — extremely)

1. 你妈妈担心得要命。

   nǐ mā​ma dān xīn de yào​mìng.

   Your mom's worried sick.

   Source: OpenSubtitles

2. 更要命的是，他们还是表兄妹。

   gèng yào​mìng de shì, tā​men hái​shi biǎo​xiōng​mèi.

   What is even worse is that they are cousins.

   Source: CCMatrix