是动词词性，意思是想要……，例如：

1、We want to help all people get that opportunity.我们应该帮助所有人获得这样的机会。

2、What， so I can't point it at the TV when I want to watch the TV?所以呢我看电视的时候不应该把遥控器对着电视吗

3、 They want to go there by bus.他们想坐公共汽车去那。