spell的过去式_spell动词过去式

英语：动词怎么变现在分词

• 英语：动词怎么变现在分词
• 规则动词的过去式由“动词原形+-ed”构成,具体变化有：1.直接在词尾加-ed.如:want—wanted,work—worked,need—needed,clean—cleaned 2.以不发音的e结尾的在词尾加-d.如：like—liked,live—lived,use—used,move—moved 3.以一个元音字母加一个辅音字母结尾的重读闭音节动词,先双写结尾的辅音字母,再加-ed.如：stop—stopped,trip—tripped 4.以辅音字母加y结尾的动词,先把y变成i,再加-ed.如：study—studied,carry—carried,hurry—hurried,marry—married 不规则动词的过去式见课本后的不规则动词表.大体上归纳有以下六条记忆法：1.以t结尾的词,过去式与原形相同.如：put—put,let—let,cut—cut,beat—beat 2.以d结尾的词,把d变成t.如:build—built,lend—lent,send—sent,spend—spent 3.以n结尾的词,在词后加t.如：mean—meant,burn—burnt,learn—learnt 4.以ow aw结尾的词,把ow aw变成ew.如：blow—blew,draw—drew,know—knew,grow—grew 5.含有双写字母的词,将双写改为单写,在词尾加t.如：keep—kept,sleep—slept,feel—felt,smell—smelt 6.含有元音字母o i的词,将o i变成a.如：sing—sang,give—gave,sit—sat,drink—drank 规则动词词尾加-ed有三种读音：1.在清辅音后读作[t].如：asked,helped,watched,stopped 2在浊辅音和元音后读作[d].如：enjoyed,studied,moved,called 3.在t d后读作[id].如：wanted,needed 现在分词的构成方法如下 ：一般情况下,直接在动词原形后面加 -ing.going asking finding working being seeing printing raining standing studying speaking spelling 以不发音的-e 结尾的动词,去-e ,再加-ing.coming taking firing encircling writing becoming breathing leaving 闭音节的单音节词,或以重读闭音节结尾的多音节词,这些词的末尾只有一个辅音字母时,双写这个辅音字母,再加 -ing.sitting running getting cutting stopping beginning planning permitting