1.人称代词
主格：Iweyousheheitthey
宾格：meusyouherhimitthem
形容词性物主代词：myouryourherhisitstheir
名词性物主代词：mineoursyourshershisitstheirs
2.形容词和副词的'比较级
(1)一般在形容词或副词后+eroldertallerlongerstronger,etc
(2)多音节词前+moremoreinteresting,etc.
(3)双写最后一个字母，再+erbiggerfatter,etc.
(4)把y变i，再+erheavier,earlier
(5)不规则变化：well-better,much/many-more,etc.
3.可数词的复数形式
Mostnouns+sabook?books
Nounsendinginaconsonant+y-y+iesastory—stories
Nounsendingins,sh,chorx+esaglass—glassesawatch-watches
Nounsendingino+sor+esapiano—pianosamango—mangoes
Nounsendinginforfe-forfe+vesaknife?knivesashelf-shelves
4.不可数名词(单复数形式不变)
bread,rice,water,juiceetc.
5.缩略形式
I’m=Iamyou’re=youareshe’s=sheishe’s=heis
it’s=itiswho’s=whoiscan’t=cannotisn’t=isnotetc
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