语法Grammar: “没有”(méiyǒu) 和 “不”(bù)

“没有”和“不”都可以用在动词前面表示否定，但是它们用在不同的句子里。

Both méiyǒu and bù can be used before a verb to mean not, but they are used in different kinds of sentences.

1. <1>“不”的典型用法是表示主观的态度，例如：

Bù is typically used to express a subjective attitude, such as:

我以前不看电视，现在不看电视，以后也不看电视。

(I did not watch TV in the past, do not watch TV now, and will not watch TV in the future.)

我现在不回宿舍。

(I will no got back to dorm now.)

<2>“不”也用来表示习惯性的动作或静态的情况。因为形容词做句子谓语时功能上如同静态的动词，所以对形容词的否定使用“不”。如，

It is also used in sentences that express habitual actions or stative situations. Since adjectives function as stative verbs when used as the predicate of a sentence, they are always negated by bù:

昨天晚上我很不舒服。

(I was very sick last night.)

图书馆离宿舍不太远。

(The library is not too far from the dorm.)

2. “没有”（没）用来对关于过去客观事实的陈述，表示所说的某个动作行为（或状况）过去没有发生。例如：

Instead, méiyǒu (often shortened to méi) is used in negative statements about factual past events, which indicate that some action (not a state) did not occur in the past. For example:

大卫前天没来上课。

(David didn’t come to class the day before yesterday.)

我昨天没有预习。

(I didn’t preview this lesson yesterday.)