动词过去式表示过去某个时间里发生的状态或者动作，用于一般过去时态，动词的过去式分为规则动词和不规则动词。规则动词变过去式的一般规律有：一般动词+ed，以e结尾的动词直接+d；辅音字母加y结尾的，变y为i再+ed；以重读闭音节结尾，末尾只有一个辅音字母（字母w，y，x除外），双写这个辅音字母+ed。那么不规则动词过去式变化规则是怎样的呢？
is-was
are-were
am-was
go-went
do，does-did
bring-brought
make-made
have-had
run-ran
tell-told
eat-ate
get-got
draw-drew
put -put
read-read
take-took
die-died
see-saw
fly-flew
cut-cut
meet-met
tell-told
build-built
lend-lent
lose-lost
hear-heard
buy-bought
choose-chose
forget-forgot
sink-sank
sing-sang
begin-began
ring-rang
drink-drank
draw-drew
lie-lay
wear-wore
know-knew
teach-taught
swim-swam
stand-stood
keep-kept
think-thought
