nobody,no one), every(everything,everybody,everyone),all,each,both,much,many,(a)little,(a)few,other(s),another,none,one,either, neither等。
1、作主语 例句:Either(of the answers) is correct。
a little通常带有肯定的意思,表示还有一点;而little带有否定的意思,只剩一点儿了。
(little后通常加不可数名词)a few和few同上。
(后通常加可数名词)记忆口诀:有a就有(有一点),没a就没有(几乎没有)。
5、作状语。

1.some相关的复合不定代词常用语肯定句中。
any相关的复合不定代词常用语否定句和疑问句中。
There is someone singing in the next room.There isn't anyone singing in the next room.Is there anyone singing in the n。
a和an用法顺口溜:不定冠词a和an,单数可数名词前;辅音若在词首发,词前只把a来加;元音若在词首放,词前an词不敢忘;不定冠词相当one,但不强调数观念;不定冠词很关键,四个所指记心间.(每指、泛指、类指和某指。

常用不定代词有:some(something,somebody,someone),any(anything,anybody,anyone), no(nothing,nobody,no one), every(everything,everybody,everyone),all,each,both,much,many,(a)little,(a)few。