你好，在下的回答如下所示：
1)单数名词加s: students, apples, bags, trees, books, brothers.?
2)以s、x、sh、ch结尾的名词加es: glasses, boxes, brushes
3)以
辅音字母加y结尾的名词，变y为i加es: cities, babies, enemies.
4)以f或fe结尾的名词，多数变f为v加es: wives, knives.但有些词只加s: roofs, proof s, chiefs.? 5)以o结尾的名词，有些加es: Negroes, heroes, tomatoes, potatoes.其它加s: radio s, zoos, pianos, photos.
6)不规则名词：footfeet, goosegeese, toothteeth, childchildren, manme n, womanwomen, sheepsheep, deerdeer, mousemice.
7)某些外来词变复数：datumdata, mediummedia, bacteriumbacteria, curriculumcurricula, criterioncriteria, phenomenonphenomena. (?um/?ona)?analysisanalyses, basisbases, crisiscrises, diagnosisdiagnoses.(?ises )
8)复合名词变复数：以
不可数名词结尾的复合名词无复数形式，如：homework.? 以man或woman为前缀的复合名词变复数，前后两个名词都变复数，如：manservantmenservants, woman student women students.?
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