waste|wasted|wastes

来吧，我们开始吧——我们已经浪费了足够多的时间了。

Come on, let's get started - we've ___wasted enough time already.

他浪费太多时间玩电子游戏。

He ___wastes too much time playing video games.

不要浪费你的时间。

Don't ___waste your time.