动词词形变化一览表: 规则动词变化表:规 则变 化原形动词结尾情况现在时单三人称现 在 分 词过去式和过去分词一般情况+s+ing+eds,x,ch,sh,o 结尾+es+ing+ed辅音字母+y 结尾y→i,+es+ingy→i,+ed重读闭音节一元一辅结尾+s双写辅音字母,+ing双写辅音字母,+ed不发音的 e 结尾+s去掉 e,+ing+die 结尾+sie→y,+ing+d不规则变化have→has;be→is(无) (见不规则动词变化表)注意:①在加 ing 或 ed 时动词假如以“r”结尾,尾音节又重读的动词,“r”应双写
②s/es 的读音规则:在清辅音后读[s];在浊辅音后和元音后读[z];在[ s ]、[z]后读[iz]
③ed 的读音规则:在清辅音后读[t];在浊辅音后和元音后读[d];在[t]、[d]后读[id]
be(“是/存在”)动词的各种时态变化:一 般 现 在 时一 般 将 来 时现 在 完 成 时I am…
You are
…He/She/It is…
We/You/They are…
(I 等各人称) will be…
I am He/She/It is going to beWe/You/They are I have been…
You have been…
She/he/It has been…
We/You/They have been…
一 般 过 去 时过 去 将 来 时过 去 完 成 时I was…
You were
…He/She/It was…
We/You/They were…
(I 等各人称) would be…
I was He/She/It was going to bWe/You/They were I had been…
You had been…
She/he/It had been…
We/You/T