2 sentences for 荒废 (huāng​fèi — to waste)

1. 我才没荒废人生。

   wǒ cái méi huāng​fèi rén​shēng.

   I'm not wasting my life.

   Source: OpenSubtitles

2. 与猫度过的时光从不会荒废。

   yǔ māo dù​guò de shí​guāng cóng​bù huì huāng​fèi.

   Time spent with cats is never wasted.

   Source: CCMatrix