drop的过去式dropped catch的过去式caught一般过去式 表示过去的动作和状态.I met him yesterday.昨天我碰见了他.

一般过去式构成：表示一般过去式的动词通常用动词的过去式形式来表示,而动词的过去式是在动词原形的基础上变化的.动词的过去式可分为规则动词和不规则动词.规则动词的过去式变化如下：

一般情况下,动词词尾加 -ed ,如：

worked played wanted acted

以不发音的 -e 结尾动词,动词词尾加 -d,如：lived moved decided declined hoped judged raised wiped

以辅音字母 + y结尾的动词,把-y变为-i 再加-ed,如：

studied tried copied justified cried carried embodied emptied 以一个辅音字母结尾的重读闭音节动词,双写词尾辅音字母,再加 -ed,如：stopped begged fretted dragged dropped planned dotted dripped 注：不规则动词的过去式变化规律性不强,须多加记忆.

go - went make - made get - got buy - bought come - came fly-flew

动词过去式,过去分词不规则变化

AB型

can could shall should

will would may might

AAA型

cost cost cost

cut cut cut

hit hit hit

hurt hurt hurt

let let let

must must must

put put put

set set set

shut shut shut

read read read

AAB型

beat beat beaten

ABA型

become became become

come came come

run ran run

ABB型

bring brought brought

buy bought bought

think thought thought

catch caught caught

teach taught taught

build built built

lend lent lent

send sent sent

spend spent spent

dig dug dug

hang hung hung

feel felt felt

keep kept kept

sleep slept slept

sweep swept swept

leave left left

smell smelt smelt

spill spilt spilt

lay laid laid

pay paid paid

say said said

sell sold sold

tell told told

sit sat sat

spit spat spat

stand stood stood

understand understood understood

learn learnt learnt

mean meant meant

spoil spoilt spoilt

shine shone shone

win won won

have had had

make made made

hear heard heard

find found found

hold held held

ABC型

begin began begun

drink drank drunk

ring rang rung

sing sang sung

sink sank sunk

swim swam swum

blow blew blown

fly flew flown

grow grew grown

know knew known

throw threw thrown

draw drew drawn

show showed shown

break broke broken

choose chose chosen

forget forgot forgotten

freeze froze frozen

speak spoke spoken

wake woke woken

drive drove driven

eat ate eaten

fall fell fallen

give gave given

hide hid hidden

ride rode ridden

rise rose risen

take took taken

mistake mistook mistaken

write wrote written

am,is was been

are were been

do did done

go went gone

lie lay lain

see saw seen

wear wore worn

易错型

show showed shown

draw drew drawn

fall fell fallen

feel felt felt

hold held held

help helped helped

think thought thought

thank thanked thanked

take took taken

talk talked talked

get got got

forget forgot forgotten

meet met met

mean meant meant

hit hit hit

hide hid hidden

ring rang rung

bring brought brought

eat ate eaten

beat beat beaten

lie lay lain

lay laid laid

find found found

found founded founded

buy bought bought

bring brought brought

learn learnt learnt

hear heard heard