①一般情况下在动词原形后直接加-ed。如：wanted，played。
②以不发音的字母e结尾的动词，去掉e再加-ed。如：hoped，lived。
③重读闭音节单词需双写最后一个辅音字母再加-ed。如：stopped。
④以辅音字母+y结尾的动词变y为i，再加-ed。如：studied，worried。
规则动词过去式的读音也有规律可循。请记住：清后[t]，元浊[d]，[t]
[d]之后读[id]。
①清辅音[p]
[k]
[f]
[s]
[f]
[tf]等后，ed要读[t]。如：worked，finished。
②元音或浊辅音[b]
[g]
[v]
[z]
[m]等后，ed要读[d]。如：lived，called。
③[t]或[d]后，ed读[id]。如：started，needed。
b.不规则动词变化
be动词过去式有两种形式，主语是第一、三人称单数形式使用was，其他人称用were
其他的大概有几类
一、aaa型（原形、过去式和过去分词同形）：
cost
cost
cost
cut
cut
cut
let
let
let
put
put
put
read
read
read
二、abb型（过去式与过去分词同形）：
bring
brought
brought
build
built
built
buy
bought
bought
catch
caught
caught
dig
dug
dug
feel
felt
felt
find
found
found
get
got
got
have
had
had
hear
heard
heard
hold
held
held
keep
kept
kept
※learn
learnt
learnt
leave
left
left
lend
lent
lent
make
made
made
meet
met
met
pay
paid
paid
say
said
said
sell
sold
sold
send
sent
sent
shine
shone
shone
sit
sat
sat
sleep
slept
slept
※smell
smelt
smelt
spend
spent
spent
stand
stood
stood
teach
taught
taught
tell
told
told
think
thought
thought
understand
understood
understood
三、abc型（原形、过去式和过去分词各异）：
be
waswere
been
begin
began
begun
blow
blew
blown
break
broke
broken
do
did
done
draw
drew
drawn
drink
drank
drunk
drive
drove
driven
eat
ate
eaten
fall
fell
fallen
fly
flew
flown
forget
forgot
forgotten
give
gave
given
go
went
gone
grow
grew
grown
know
knew
known
lie
lay
lain
ride
rode
ridden
ring
rang
rung
see
saw
seen
show
showed
shown
sing
sang
sung
speak
spoke
spoken
swim
swam
swum
take
took
taken
throw
threw
thrown
wake
woke
woken
wear
wore
worn
write
wrote
written
四、aba型（原形与过去分词同形）：
become
became
become
come
came
come
五、aab型（原形与过去式同形）：
beat
beat
beaten