血常规rbchgb偏低:英语啊~ 帮帮忙

watched washed cleaned played visited to是介词.不是动词 .没有过去式 went read(读音和red相同）.did

在给你介绍一下过去式的语法
规则动词过去式的构成

构成规则 原形 过去式
一般动词原形末尾加－ed look
play
lift
looked[lukt]
played[pleid]
lifted['liftid]

结尾是e的动词加-d live
hope
use
lived[livd]
hoped[h3upt]
used[juz:d]

末尾只有一个辅音字母的重读闭音节词，先双写这个辅音字母，再加-ed stop
plan(计划)
fit(适合)
stopped[stCpt]
planned[pl$nd]
fitted['fitid]

结尾是“辅音字母＋y”的动词，先变"y"为"i"再加"ed" study
carry
worry
studied['stKdid]
carried['k$rid]
worried['wKrid]

2） 规则动词过去式加“ed”后的发音规则：

读音 例词
在浊辅音和元音后面 [d] called[kC:ld] borrowed['bCr3ud]
moved[mu:vd] enjoyed[in'dICid]
welcomed['welk3md] answered['a:ns3d]

在清辅音后面 [t] finished['finisNt] helped[helpt]
passed[pa:st] reached[ri:tNt]

在[t],[d]音后面 [id] wanted['wCntid] started['sta:tid]
needed['ni:did] counted['kauntid]

3） 不规则动词的过去式参见不规则动词表，常见不规则动词有：

am/is - was
have - had
come - came
put - put
buy - bought
wear - wore
are - were
do - did
say - said
eat - ate
read - read[red]
go - went
get - got
see - saw
take - took
make - made

watched
washed
cleaned
played
visited
to是介词,没有过去式
went
read不变,读音变化
did

如下:watched washed cleaned played visited
went read did