03 动词过去式详解

　　动词的过去式的构成规则有:

　　A,规则动词

　　① 一般直接在动词的后面加ed:如 worked , learned , cleaned , visited

　　② 以e结尾的动词直接加d:如 lived , danced , used

　　③ 以辅音字母加y结尾的动词要改y为i再加ed(此类动词较少)如 study – studied carry – carried worry – worried (注意play,stay不是辅音字母加y,所以不属于此类)

　　④ 双写最后一个字母(此类动词较少)如 stopped

　　B,不规则动词(此类词并无规则,须熟记)小学阶段要记住以下动词的原形和过去式:sing – sang , eat – ate , see – saw , have – had , do – did , go - went , take - took , buy - bought , get - got , read - read ,fly - flew , am/is - was ,

　　are - were , say - said , leave - left , swim - swam , tell - told , draw - drew , come - came , lose - lost , find - found , drink - drank , hurt - hurt , feel - felt

　　04 动词现在分词详解 动词的ing形式的构成规则:

　　① 一般的直接在后面加上ing , 如doing , going , working , singing , eating

　　② 以e 结尾的动词,要先去e再加ing ,如having , writing

　　③ 双写最后一个字母的(此类动词极少)有:running , swimming , sitting , getting