Tham khảo tài liệu 'penguin dictionary of american english usage and style_7', ngoại ngữ, anh ngữ phổ thông phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | plurals and singulars 293 in-law consuls general courts martial notaries public sergeants major and tugs of war. The noun goes first in each of those it goes second in these judge advocates lieutenant generals major generals. Many compounds that do not end in nouns get simple s endings particularly if they are single words breakthroughs forget-me-nots knockouts ne er-do-wells takeoffs and words ending in -ful like cupfuls and spoonfuls. C. Creatures peculiarities English has a variety of peculiar changes to perplex newcomers. Louse and mouse change to lice and mice. Blouse and house become blouses and houses but the s sound in house changes to a z sound in the plural. You have one goose or two geese but mongoose becomes mongooses and moose remains moose. Fish remains fish for individual specimens but becomes fishes for different types. Many fishes and beasts have simple s plurals but sometimes the singular is treated as a plural particularly by fishermen and hunters two flounders or flounder three pheasants or pheasant. Other creatures are unchanged in the plural except for different types or varieties. John buys two salmon or studies the different salmons of North America. I saw two deer and wondered which deers inhabit this region. Coffee fruit silk steel tea wheat and wool are treated as singular except when different types or varieties are considered then s is affixed and it becomes plural. An orchard produces lots of fruit and five different fruits. D. -EN -REN The -en and -ren forms are descended from Old English. They turn brother child ox man and woman into brethren the archaic version of brothers children oxen men and women. E. Foreign derivations Some words preserve the forms of the foreign languages they were derived from. As in Latin the singular words addendum alumnus datum genus minu-tia ovum stimulus and stratum change to the plural addenda alumni data genera minutiae ova stimuli and strata. As in Greek analysis criterion ellipsis phenomenon and .