规则3 以辅音字母加y结尾,变y为i再加-er busy-busier
规则4 重读闭音节结尾, 双写辅音字母再加-er fat-fatter
最高级
规则1 一般加-est e.g. high-highest
规则2 以e结尾加-st nice-nicest
规则3 以辅音字母加y结尾,变y为i再加-est busy-busiest
规则4 重读闭音节结尾, 双写辅音字母再加--est fat-fattest
7)常见缩写:
is=s I am=Im are=re
is not=isnt /iznt/ are not=arent /a:nt/
do not=dont
does not=doesnt
was=s
did not=didnt
can not=cant
have=ve
has=s
have not=havent
has not=hasnt
will=ll
will not=wont
shall not=shant
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