「不」和「没」

我不吃肉。     I don't eat meat.
我没吃肉。     I didn't eat meat.

不 = 这人 → don't / doesn't 没 = 那件事没发生 → didn't

再看几组

他不来。       He doesn't come.      每次都不来
他没来。       He didn't come.       昨天缺席
他不会来。     He won't come.        预判他不来

动手

我没完成作业。

✅ I didn't finish my homework.

我不喝咖啡。

✅ I don't drink coffee.

她昨天没打电话给我。

✅ She didn't call me yesterday.

——下一课：「了」。