限定词根据其位置的不同,可分为三类:
前位限定词,包括:all,both,half,double,twice,twotimes,one-third,two-thirds,what,such(a)等.
中位限定词,包括:the,a(an),this,that,these,those,my,your;John’s,theoldman’s;some,any,no,every,each,either,neither,enough,what(ever),which(ever),whose等.
后位限定词,包括:one,two,first,second,next,last,(an)other,many,much,(a)few,(a)little,fewer,less,more,most,several,plentyof,alotof,agreatnumberof,such等.
当多个限定词修饰一个名词时,其顺序为:
前位+中位+后位+名词,如:
allmyfriends,halfthetime,hismanybooks,twicehiscourage等.
值得注意的是限定词不能用来修饰代词,如不可以说boththey,mostthey,而应用bothofthem,mostofthem的形式.