someone单数还是复数

Someone是不定代词，不定代词做主语的时候，都为单数形式，所以谓语动词也要用单数。不定代词还有everyone，anyone，no one,表示物的有something,everything,anything,nothing 等。如：Someone is waiting for you. everyone is in the classroom. No one believes the news.

someone是单数。
The company intends to send someone on a business trip next week.

公司打算下周派遣一人去出差。

 Someone wants to talk with you.

有人想和你谈话。

Are you expecting someone this afternoon?

今天下午你是不是等什么人？

Someone left this for you.

有人把这留给你。

Was that someone else aware of the accident?

另外那个不知姓名的人也知道这个事故吗？

If you had studied harder, you might have become someone.

如果你当初学习努力的话，你或许已经成了重要人物了。

someone是单数，后面的谓语动词一般现在时用第三人称单数。