woman和man修饰中心语时,前后都变化,例:woman teacher复数为women teachers
其他的只在中心语上变复数,例:dinner table复数为 dinner tables
1.以不可数名词结尾的复合名词无复数形式.如:homework,newspaper等.
2.以man或woman为前缀的名词变复数时,前后两个名词都变成复数.如:woman doctor→women doctors,man waiter→men waiters.
3.以两个名词构成的复合名词(前面的名词为man或woman除外),一般把后面的名词变复数.如:boy friend→boy friends,paper bag→paper bags.
4.以“可数名词+介词(短语)”构成的复合名词变复数时,把前面名词变复数.如:father-in-law→fathers-in-law.
5.以“动词 / 过去分词+副词”构成的复合名词变复数时,在词尾加s.如:grown-up→grown-ups,stand-by→stand-bys.