It's an everyday occurrence that we can think and reason and feel and be creative, or choose otherwise and have free will.

我们能思考推理,感知创造,或能做出不同的选择,拥有自由意志,都是每天存在的事

耶鲁公开课 - 死亡课程节选

whether an occurrence has ever happened.

询问一件事是否发生过。

Do you ever课堂 - SpeakingMax英语口语达人