1.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,other(s),another,none,one,either, neither等。一般来讲,修饰不定代词的词要置于其后。
2.不定代词,是英语语法术语,在句中可以作主语、宾语、表语、定语和状语。不定代词是不指明代替任何特定名词或形容词的代词。