Verb + 了 + 没有? / Subject + Verb + 没有?
没有 can be placed at the end of a sentence or used in a verb-没有 pattern to ask whether an action happened. This creates a yes/no question about a past event. For example, 你吃了没有? means "Did you eat?" and 他来了没有? means "Did he come?"
你看了那部电影没有?
nǐ kàn le nà bù diànyǐng méiyǒu?
Have you seen that movie?
作业写完了没有?
zuòyè xiě wán le méiyǒu?
Have you finished your homework?
他们到了没有?我等了很久。
tāmen dào le méiyǒu? wǒ děng le hěn jiǔ.
Have they arrived? I've been waiting a long time.