How to use 才(cái) and 就(jiù) to express a sense of lateness or earliness? [Mandarin Chinese Grammar]

Using 才(cái) and 就(jiù) to express a sense of lateness or earliness in Mandarin Chinese.
Answer to the takehome practice:
【电影8点开始，他8点半才到。】

[@yfgyvffb1922]

感谢你😍😍

[@IHeartMandarin8]

不用谢！

[@ema7768]

我 只看这个录像一次，我就了解

[@IHeartMandarin8]

诶，你这个“就”用得很棒！Very good! 👍 If you allow me to make it even better, you can say "这个视频我只看一次，就明白了。”

[@diaryvania]

电影八点就开始了但他还没来才八点半

[@IHeartMandarin8]

👍 Very nice, just change the second part to "但他八点半才来". 😊

[@丁玲-v8h]

請問，為什麼不說：他十點才來了。

[@IHeartMandarin8]

Good question. It's a quite idiomatic expression. With 才 used to express a sense of lateness, they just don't go well together... I know it doesn't logically make sense, but it's like since it happened late, it's kind of not satisfactorily completed. So, don't use 了 with 才.

[@yfgyvffb1922]

感谢你😍😍

[@IHeartMandarin8]

不用谢！