Question

英语过去式

Answer 1

ail的过去式
mailed
ride的过去式rode
rain的过去式rained
skid的过去式
skidded
crash的过去式crashed
动词的过去式规则变化,
am→was
are→were
take→took
sit→sat
say→said
get→got
swim→swam：
①一般直接加ed
work－worked
clean－cleaned
②不发音的e结尾的直接加d，decided
live－lived
love－loved
③辅音字母加y结尾变y为i。
如：go→went
come→came
is，加ed
study－studied
hurried
carried
④重读闭音节结尾只有一个辅音字母的双写这一辅音字母再加ed
stop－stopped
drop－dropped
wag－wagged
不规则动词的过去式要一一记忆

Answer 2

改英语句子的过去式，主要是把句中的谓语动词变成过去式就行了。例如：i
help
them
water
the
flowers.改为：i
helped
them
water
the
flowers.