Subject + 没有 + Verb
没有 placed before a verb negates a past action, meaning the action did not happen. Unlike 不, which negates habits or intentions, 没有 specifically denies that a completed event occurred. For example, 我没有吃 means "I didn't eat" and 他没有来 means "He didn't come."
我昨天没有去上班。
wǒ zuótiān méiyǒu qù shàngbān.
I didn't go to work yesterday.
她没有告诉我这件事。
tā méiyǒu gàosù wǒ zhè jiàn shì.
She didn't tell me about this.
我们还没有决定去哪里。
wǒmen hái méiyǒu juédìng qù nǎlǐ.
We haven't decided where to go yet.