boat的复数

boats

toy boats，只在boat后加-s构成复数，toy不变。

toyboat的复数是toyboats。复合名词变复数规律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：womandoctor→womendoctors,manwaiter→menwaiters.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：boyfriend→boyfriends,paperbag→paperbags.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.6以“man”"woman"等构成的复数名词,两个都要变复数mandoctor→mendoctorswomanteacher→womenteachers