1) 以y结尾的专有名词,或元音字母+y 结尾的名词变复数时,直接加s变复数:
如:two Marys
the Henrys
monkey---monkeysholiday---holidays
比较: 层楼:storey ---storeys story---stories
2) 以o 结尾的名词,变复数时:
a. 加s,如: photo---photos
piano---pianos
radio---radios
zoo---zoos;
b. 加es,如:potato--potatoestomato--tomatoes
c. 均可,如:zero---zeros / zeroes
3) 以f或fe 结尾的名词变复数时:
a. 加s,如: belief---beliefsroof---roofs
safe---safes gulf---gulfs;
b. 去f,fe 加ves,如:half---halves
knife---knivesleaf---leaveswolf---wolves
wife---wiveslife---livesthief---thieves;
c. 均可,如:handkerchief:
handkerchiefs / handkerchieves