没有 + Verb
没有 (méiyǒu) is used as an adverb before a verb to negate a past action, indicating that something did not happen. Unlike 不 (bù), which expresses habitual negation or refusal, 没有 specifically denies that an action was completed or took place. The 有 can be dropped in casual speech, leaving just 没.
我昨天没有去上班,因为生病了。
Wǒ zuótiān méiyǒu qù shàngbān, yīnwèi shēngbìng le.
I didn't go to work yesterday because I was sick.
她没看那部电影,所以不知道结局。
Tā méi kàn nà bù diànyǐng, suǒyǐ bù zhīdào jiéjú.
She didn't watch that movie, so she doesn't know the ending.
他们没有通知我时间改了。
Tāmen méiyǒu tōngzhī wǒ shíjiān gǎi le.
They didn't notify me that the time had changed.