你好!something有两个词性,代词(pron)和副词(adv),具体讲解如下:

1、作代词时为不定代词,意为“某事(物)”,当它做主语时,谓语动词使用单数形式。例句如下:

Maybe something is wrong with your car.

当形容词修饰something时,形容词要后置:something interesting、something strange…

2、作副词时意为“稍微、有点儿…”,例句如下:

It tastes something like lemon!