一、词形和读音三种完全相同：
cut cut cut cost cost cost
类似的还有hit, hurt, burst, cast, put, set, shut, spread, split
二、过去式与过去分词相同，与原形却不同
1. bring brought brought buy bought bought
fight fought fought think thought thought
seek sought sought catch caught caught
teach taught taught
2. feel felt felt keep kept kept
leave left left sleep slept slept
sweep swept swept spell spelt spelt
meet met met bleed bled bled
lead led led speed sped sped
3. deal dealt dealt lean leant leant
dream dreamt dreamt learn learnt learnt
burn burnt burnt mean meant meant
4. get got got sell sold sold
tell told told hold held held
say said said lay laid laid
pay paid paid have had had
make made made hear heard heard
lose lost lost sit sat sat
stand stood stood shoot shot shot
light lit lit win won won
5. strike struck struck dig dug dug
stick stuck stuck swing swung swung
hang hung hung
6. send sent sent build built built
bend bent bent lend lent lent
spend spent spent
以上的过去分词多以t, d结尾。
三、原形与过去分词相同，却与过去式不同：
come came come become became became
run ran run overcome overcame overcome
四、i-a.u型 即原形的i变为过去式中的a、变为过去分词中的u
begin began begun drink drank drunk
ring rang rung sing sang sung
swim swam swum sink sank sunk
spring sprang sprung
五、型，即三种形式的最后一个字母分别是（除外）
blow blew blown draw drew drawn
grow grew grown know knew known
throw threw thrown fly flew flown
另外：
show showed shown sow sowed sown
六、-en型 即过去分词是以en为结尾
1. rise rose risen drive drove driven
ride rode ridden write wrote written
2. hide hid hidden bite bit bitten
beat beat beaten
2. speak spoke spoken break broke broken
freeze froze frozen steal stole stolen
choose chose chose forget forgot forgotten
3. fall fell fallen give gave given
forbid forbade forbidden forgive forgave forgiven
take took taken shake shook shaken
wake woke waken eat ate eaten
以上只是对不规则动词进行了粗略的分类，还有些常用的不规则动词没有概括进去，如：tear-tore-torn bear-bore-born/ borne lie-lay-lain wear-wore-worn 等等。希望同学们在今后的学习中要不但地总结、归纳和练习，最终能完全自如地运用它们。
（小周）