不规则动词变化
1.A---A---A型（现在式、过去式和过去分词同形）
cost x09cost x09cost 花费
cut cut cut 割,切
hit x09hit x09hit 打
let x09x09letx09let 让
put x09put x09put 放下
read x09read x09read 读
hurt x09hurt x09hurt 伤
2.A---A---B型（现在式和过去式同形）
beat x09beat x09beaten 打
3.A---B---A型（现在式和过去分词同形）
come x09came x09come 来
become x09became become 变
run x09ran x09run 跑
4.A ---B ---B型
（1）在动词原形后加一个辅音字母（e）d或t构成过去式或过去分词.
burn x09burnt x09burnt 燃烧
learn learned/learnt learned/learnt 学习
mean x09meant x09meant 意思
hear x09heard x09heard 听见
（2）把动词原形的最后一个辅音字母“d”改为“t” 构成过去式或过去分词.
build x09built x09built 建筑
lend x09lent x09lent 借给
send x09sent x09sent 送
spend x09spent x09spent 花费
（3）其他
pay x09paid x09paid 付
lay x09x09laid x09laid 下蛋
lose x09lost x09lost 失去
say x09said x09said 说
bring x09brought brought 带来
buy x09boughtx09bought 买
think x09thought thought 想
sleep x09slept x09slept 睡
keep x09kept x09kept 保持
sweepx09swept x09swept 扫
stand x09stood x09stood 站
understand understood understood 明白
win x09won x09won 得胜
shine shone/shined shone/shined 发光
catch x09caught x09caught 抓住
teach x09taught x09taught 教
feel x09felt x09felt 觉得
fight x09fought x09fought 战斗
find x09found x09found 发现
get x09got x09got/gotten得到
hang x09hanged hanged 绞死,吊死
hang x09hung hung 挂
have x09had x09had 有
hold x09held x09held 盛,握
leave x09left x09left 离开
make x09made x09made 制造
meet x09met x09met 遇见
sell x09sold x09sold 卖
shoot x09shot x09shot 射击
tell x09told x09told 告诉
smell smelt/smelled smelt/smelled 嗅,闻
sit x09x09sat x09sat 坐
dig x09dug x09dug 挖
5.A---B---C型（现在式、过去式和过去分词都不相同）
（1）在动词原形后加-n或-en构成过去分词.
eat x09ate x09eaten 吃
fall x09fell x09fallen 落下
steal x09stole x09stolen 偷
give x09gave x09given 给
freeze x09froze x09frozen 冻结
take x09took x09taken 拿
see x09saw x09seen 看见
write x09wrote x09written 写
ride x09rode x09ridden 骑
drive x09drove x09driven 驾驶
throw x09threw x09thrown 抛,扔
blow x09blew x09blown 吹
grow x09grew x09grown 生长
know x09knew x09known 知道
fly x09x09flew x09flown 飞
draw x09drew x09drawn 拉,绘画
show x09showed shown 展示
（2）过去式加-n或-en构成过去分词.
speak x09spoke x09spoken 说话
break x09broke x09broken 破碎,折断
wake waked/ woke waked/ woken 醒
choose x09chose x09chosen 选择
forget x09forgot x09forgot /forgotten 忘记
（3）变单词在重读音节中的元音字母“i”分别为“a”（过去式）和“u”（过去分词）.
begin x09began x09begun 开始
ring x09rang x09rung 按铃
sing x09sang x09sung 唱
sink x09sank x09sunk 沉
swim x09swam x09swum 游泳
drink x09drank x09drunk 饮
（4）其他不规则动词的变化.
be(am,is) x09was been 是
be(are) x09were x09been 是
do x09x09did x09done 做
go x09x09went x09gone 去
lie x09x09lay x09lain 躺/位于
lie x09x09lied x09lied 说谎
wear x09x09 wore x09x09 worn 穿
