关于规则动词的过去式变化（在词尾加-ed）大家已经了如指掌了，但对那些不规则动词的过去式的变化，记忆起来总是有一定难度。这里给大家一些“妙招”：
1、中间去e末尾加t，
如：keep→kept，feel→felt，sleep→slept，sweep→swept
2、结尾d变t，
如：build→built，lend→lent，send→sent，spend→spent
3、遇见i改为a，
如：ring→rang，sit→sat，drink→drank，sing→sang，swim→swam，begin→began，give→gave
4、“骑（马）”“开（车）”“写（字）”——把i变o
如：ride→rode，drive→drove，write→wrote
5、“想”“买”“带来”“打仗”——ought换上，
如：think→thought，buy→bought，bring→brought，fight→fought
6、“教书”“抓住”——aught切莫忘，
如：teach→taught，carry→caught
7、ow/aw改为ew是新时尚，
如：know→knew，grow→grew，throw→threw，draw→drew
8、“放”“让”“读”过去式与原形一个样，
如：put→put，let→let，read→read/red/
二、部分不规则动词单词汇总:
Some common irregular verbs
可分五种（There are five sorts of verbs）
I. A-B-C类
verb past tense past participle
arise arose arisen
awake awoke awaken
be was(were) been
bear bore borne(born)
begin began begun
blow blew blown
choose chose chosen
do did done
draw drew drawn
drink drank drunk
drive drove driven
eat ate eaten
fall fell fallen
fly flew flown
forbid forbade forbidden
forgive forgave forgiven
freeze froze frozen
give gave given
go went gone
grow grew grown
know knew known
ring rang rung
rise rose risen
see saw seen
sew sewed sewn（sewed）
shake shook shaken
show showed shown（showed）
shrink shrank shrunk
sing sang sung
sink sank sunk
speak spoke spoken
spring sprang(sprung) sprung
steal stole stolen
swear swore sworn
swim swam swum(美习惯用 went swiming替)
take took taken
tear tore torn
throw threw thrown
wake woke woken(习惯用awoken替)
wear wore worn
weave wove woven
write wrote written
lie（down）（平放） lay lain
lie(说谎) lay lain
II. A-B-B
verb past tense past participle
bend bent bent
bind bound bound
bring brought brought
build built built
buy bought bought
catch caught caught
dig dug dug
dream dreamt （dreamed） dreamt（dreamed）
feed fed fed
feel felt felt
fight fought fought
find found found
get got gotten
hang hung hung
have had had
hear heard heard
hide hid hidden （hit）
hold held held
keep kept kept
lay laid laid
lead led led
learn learned（learnt） learned（learnt）
leave left left
light lit lit
lose lost lost
make made made
mean meant meant
meet met met
pay paid paid
say said said
sell sold sold
send sent sent
shine shone shone
shoot shot shot
sit sat sat
sleep slept (sleeped) slept(sleeped)
smell smelled(smelt) smelled(smelt)
speed sped（speeded） sped（speeded）
spell spelt（spelled ） spelt（spelled ）
spit spat（spit） spat
spill spilt（spilled） spilt（spilled）
stand stood stood
stick stuck stuck
sweep swept swept
swing swang swung
teach taught taught
tell told told
think thought thought
understand understood understood
weep wept wept
win won won
wind [waind] wound [wUnd] wound
wring wrung wrung
III. A-B-A
verb past tense past participle
become became become
come came come
run ran run
V. A-A-A
verb past tense past participle
burst burst burst
cost cost cost
cut cut cut
hurt hurt hurt
put put put
set set set
shut shut shut
slit slit slit
spread spread spread
thrust thrust thrust
read [rI:d] read [red] read [red]
wed wed (wedded) wed (wedded)
wet wet (wetted) wet (wetted)
VI. A-A-B
verb past tense past participle
beat beat beaten
