1、可数名词单数转化为复数的规则：1、一般在词尾加s,如：Walkman-Walkmansboyboys2、以s、x、shch结尾的名词，力口es如：dress一dresses（连衣裙）、bus-buses、glass-glasses、box-boxes、faxfaxes、wish-wishes、watch-watches（手表）、peach-peaches3、以辅音字母加y结尾，去y变i加es,如diarydiariesfamilyfamilies、study-studies（书房）、storystories、hobby-hobbies、country-countries（国家）、butterf
2、ly-butterfliesfireflyfireflies（萤火虫）、citycities（城市）4、以O结尾的名词，有些在词尾加es,有的加s,如：mango-mangoesphoto-photoszoo-zoospiano-pianos5、以f、fe结尾的名词，去f、fe变V加es如：knifeknivesscarfscarves（围巾）、theifthieves（小偷）、leafleaves（叶子）、housewife-housewives（家庭主妇）6、不规则变化如childchildrenfootfeettooth一teethpeople-peoplefish-fishman一me
3、nwoman-womenpoliceman一policemen、policewoman-policemen、snowmansnowmen动词原形转化为动词的第三人单数形式的规则1、一般在词尾加s,如：play一playsstaystays2、以s、x、sh、ch、o结尾的名词，加es如：dressdresses（dressup装扮）、wash-washes（洗）、catch-catches、brush-brushes（刷）、touch-touches、watch-watches、teach-teachesgo-goesdo-does3、以辅音字母加y结尾，去y变i加es,如trytries偿试
4、crycries（哭）、studystudies（学习）、flyflies、carry-Carries（搬）、worry-WOn*ies（担心）4、不规则变化如havehas动词原形转化为动词ing形式（动词的现在分词、动名词）规则：1一般在词尾加ing,如skiSkiing（滑雪）、jumpjumpingeat-eatingclean-cleaning2、以不发音的e结尾，去e力口ing如makemakingskate-skating（溜冰）、take-taking、write-writing、cycleCyCling（骑自行车）3、双写末字母加ing,如get-getting、run一
5、running、swimswimmingshopshoppingsitsittingjog-joggingputputtingplan-Planning（制定计戈U）、begin-beginningforget-forgetting（忘记）、stop-stopping动词原形转化为动词过去式规则：1一般在词尾加ed,如：talktalkedwaterwatered2、以不发音的e结尾，直接力口d,如like-likedtaste-tastedlivelived3、以辅音字母加y结尾，去y变i加ed,如trytried（尝试）、crycried（哭）studystudied（学习）、carry-carried（搬）、worry-worried（担心）4、双写末字母加ed,如stopstopped5、不规则变化amis-was、are-were、do-did、have-had、fly-flew、eat-atemake-madego-wentsing-sangtake-tookcome-cameseesawsitsatgivegavebuyboughtget-gotforget-forgotmeet-mettell-toldrun-ranbeginbegan、runranreadreadputputsaysaid
